Merge pull request #2914 from dotCooCoo/fix/pdfinfo-reads-postscript

MCP: document.pdfInfo answers one page for an EPS, a .ps file or a PostScript .ai

crates/engine/src/cmd/fileio/mod.rs

@@ -207,7 +207,7 @@ pub fn specs() -> Vec<CommandSpec> {
             "PDF Info",
             [],
             None,
-            "{path | name? | dataBase64 (a file's path, or its bytes), password?, thumbnail?: page (1-based), thumbnailSize?: 160 (px, longest side), cropTo?: crop (the thumbnail's box)} → {pages, needsPassword, wrongPassword?, pageInfo: [{width, height (pt, as shown), rotation, boxes: {media, crop, bleed, trim, art: [x0, y0, x1, y1] (PDF space, pt)}}], thumbnail?: PNG dataBase64}; a page whose UserUnit (PDF 1.6) is above 1 gives its size and boxes in pt, its numbers times the UserUnit (one above 75,000 counts as 75,000); an encrypted PDF without its password → {pages: 0, needsPassword: true}",
+            "{path | name? | dataBase64 (a file's path, or its bytes), password?, thumbnail?: page (1-based), thumbnailSize?: 160 (px, longest side), cropTo?: crop (the thumbnail's box)} → {pages, needsPassword, wrongPassword?, pageInfo: [{width, height (pt, as shown), rotation, boxes: {media, crop, bleed, trim, art: [x0, y0, x1, y1] (PDF space, pt)}}], thumbnail?: PNG dataBase64}; a page whose UserUnit (PDF 1.6) is above 1 gives its size and boxes in pt, its numbers times the UserUnit (one above 75,000 counts as 75,000); an encrypted PDF without its password → {pages: 0, needsPassword: true}; a PostScript file (an EPS, a .ps file, a .ai in PostScript form) → {pages: 1, needsPassword: false, pageInfo: [{width, height (its bounding box, a US Letter page without one), rotation: 0, boxes: {}}]} (password and cropTo don't apply; thumbnail: 1 shows what the page prints)",
             always,
             pdfimport::pdf_info
         ),

crates/engine/src/cmd/fileio/pdfimport.rs

@@ -1,6 +1,6 @@
 //! Opening and placing PDF (and PDF-compatible `.ai`/`.ait`) files: the options `document.open`
 //! and `file.place` read ([`LoadOptions`]), the pages they import and `document.pdfInfo` (pages,
-//! boxes, a thumbnail) for the Import PDF dialog.
+//! boxes, a thumbnail; one page for a PostScript file) for the Import PDF dialog.
 
 use serde_json::{Value, json};
 use vectorcraft_doc::{ColorMode, Document};
@@ -162,6 +162,10 @@ const INFO: &str = "document.pdfInfo";
 pub(super) fn pdf_info(_: &mut Session, p: &Value) -> Result<Value> {
     let bytes = source(p, INFO)?.bytes;
     let o = LoadOptions::from_params(INFO, p)?;
+    // Programs whose header is only `%!` are PostScript too, as `clipboard.importEps` reads them.
+    if bytes.starts_with(b"%!") || vectorcraft_pdf::is_postscript(&bytes) {
+        return postscript_info(&bytes, p);
+    }
     let info = match vectorcraft_pdf::info(&bytes, o.password.as_deref()) {
         Ok(i) => i,
         Err(e @ (PdfError::NeedsPassword | PdfError::WrongPassword)) => {
@@ -183,10 +187,34 @@ pub(super) fn pdf_info(_: &mut Session, p: &Value) -> Result<Value> {
         let page = usize::try_from(n).ok().and_then(|n| n.checked_sub(1)).filter(|i| *i < info.pages.len());
         let page = page.ok_or_else(|| bad(INFO, format!("thumbnail: no page {n} (the PDF has {})", info.pages.len())))?;
         let (doc, _) = page_document(&bytes, page, &o)?;
-        let size = f64_or(p, "thumbnailSize", 160.0).clamp(16.0, 1024.0);
-        let r = doc.artboards.first().map(|a| a.rect).ok_or_else(|| err("the page has no area"))?;
-        let png = super::encode(&doc, "png", &json!({"scale": size / r.width().max(r.height()).max(1.0)}))?;
-        out["thumbnail"] = json!(vectorcraft_format::base64_encode(&png));
+        out["thumbnail"] = json!(thumbnail(&doc, p)?);
     }
     Ok(out)
 }
+
+/// `document.pdfInfo` of a PostScript file (an EPS, a `.ps` file, a `.ai` in PostScript form): one
+/// page, the page [`vectorcraft_eps::page`] reads, with no PDF boxes. Its thumbnail is the file as
+/// the EPS reader reads it without any editing data it carries: what the page prints, or the
+/// file's preview when its PostScript can't be read.
+fn postscript_info(bytes: &[u8], p: &Value) -> Result<Value> {
+    let page = vectorcraft_eps::page(bytes).map_err(err)?;
+    let info = json!({"width": page.width(), "height": page.height(), "rotation": 0, "boxes": {}});
+    let mut out = json!({"pages": 1, "needsPassword": false, "pageInfo": [info]});
+    if let Some(n) = p.get("thumbnail").and_then(Value::as_u64) {
+        if n != 1 {
+            return Err(bad(INFO, format!("thumbnail: no page {n} (the file has 1)")));
+        }
+        let doc = vectorcraft_eps::import_with(bytes, false).map_err(err)?.document;
+        out["thumbnail"] = json!(thumbnail(&doc, p)?);
+    }
+    Ok(out)
+}
+
+/// A PNG of `doc`'s first artboard, `thumbnailSize` px (default 160, from 16 to 1024) on its longer
+/// side, base64.
+fn thumbnail(doc: &Document, p: &Value) -> Result<String> {
+    let size = f64_or(p, "thumbnailSize", 160.0).clamp(16.0, 1024.0);
+    let r = doc.artboards.first().map(|a| a.rect).ok_or_else(|| err("the page has no area"))?;
+    let png = super::encode(doc, "png", &json!({"scale": size / r.width().max(r.height()).max(1.0)}))?;
+    Ok(vectorcraft_format::base64_encode(&png))
+}

crates/engine/src/cmd/fileio/tests_pdfimport.rs

@@ -157,27 +157,31 @@ fn a_postscript_ai_file_says_it_cannot_be_opened_yet() {
         let e = s.execute("document.open", &json!({"name": name, "dataBase64": b64(ps)})).unwrap_err().to_string();
         assert!(e.contains(name) && e.contains("PostScript") && e.contains("save it as PDF"), "{name}: {e}");
     }
-    // An EPS with a binary header too, and the PDF info of either.
+    // An EPS with a binary header too, and the PDF info of each. The plain program's PDF info gives
+    // its page, and its thumbnail gives the reader's error; the binary file's header points at no
+    // PostScript, so its PDF info is an error.
     let mut binary = vec![0xC5, 0xD0, 0xD3, 0xC6];
     binary.extend_from_slice(&[0; 28]);
     binary.extend_from_slice(ps);
     assert!(s.execute("document.open", &json!({"name": "x.eps", "dataBase64": b64(&binary)})).unwrap_err().to_string().contains("PostScript"));
-    assert!(s.execute("document.pdfInfo", &json!({"dataBase64": b64(ps)})).unwrap_err().to_string().contains("PostScript"));
+    assert!(s.execute("document.pdfInfo", &json!({"dataBase64": b64(&binary)})).unwrap_err().to_string().contains("PostScript"));
+    let v = s.execute("document.pdfInfo", &json!({"dataBase64": b64(ps)})).unwrap();
+    assert_eq!((v["pages"].as_u64(), v["pageInfo"][0]["width"].as_f64()), (Some(1), Some(100.0)), "{v}");
+    let e = s.execute("document.pdfInfo", &json!({"dataBase64": b64(ps), "thumbnail": 1})).unwrap_err().to_string();
+    assert!(e.contains("PostScript") && e.contains("frobnicate"), "{e}");
     assert!(s.active().is_none());
 }
 
-/// PostScript given where a PDF is read (`document.pdfInfo`, `clipboard.importPdf`) is refused
-/// with an error that names File › Open and File › Place, and both of those read the file.
+/// PostScript given where a PDF is read (`clipboard.importPdf`) is refused with an error that
+/// names File › Open and File › Place, and both of those read the file.
 #[test]
 fn postscript_read_as_a_pdf_names_open_and_place() {
     let ps = b"%!PS-3.0\n%%BoundingBox: 0 0 100 100\n%%EndComments\n1 0 0 setrgbcolor 10 10 50 50 rectfill\nshowpage\n%%EOF\n";
     let mut s = Session::new();
     s.execute("file.new", &json!({})).unwrap();
-    for cmd in ["document.pdfInfo", "clipboard.importPdf"] {
-        let e = s.execute(cmd, &json!({"dataBase64": b64(ps)})).unwrap_err().to_string();
-        assert!(e.contains("PostScript") && e.contains("not a PDF: File › Open and File › Place read it as EPS"), "{cmd}: {e}");
-        assert!(!e.contains("can't be opened"), "{cmd}: {e}");
-    }
+    let e = s.execute("clipboard.importPdf", &json!({"dataBase64": b64(ps)})).unwrap_err().to_string();
+    assert!(e.contains("PostScript") && e.contains("not a PDF: File › Open and File › Place read it as EPS"), "{e}");
+    assert!(!e.contains("can't be opened"), "{e}");
     for name in ["legacy.ai", "art.eps"] {
         let r = s.execute("document.open", &json!({"name": name, "dataBase64": b64(ps)})).unwrap();
         assert_eq!(r["warnings"], json!([]), "{name}: {r}");
@@ -186,6 +190,44 @@ fn postscript_read_as_a_pdf_names_open_and_place() {
     }
 }
 
+/// `document.pdfInfo` reads PostScript (an EPS, a `.ai` in PostScript form, a `.ps` file) as one
+/// page, its bounding box or a letter page without one, and its thumbnail shows that page. Each
+/// file here opens on that page with `editingData: false`.
+#[test]
+fn pdf_info_reads_postscript_as_one_page() {
+    let mut s = Session::new();
+    s.execute("file.new", &json!({"width": 300, "height": 200})).unwrap();
+    s.execute("shape.rectangle", &json!({"x": 10, "y": 10, "width": 100, "height": 50})).unwrap();
+    let data = |r: Value| vectorcraft_format::base64_decode(r["dataBase64"].as_str().unwrap()).unwrap();
+    let eps = data(s.execute("document.exportEps", &json!({"useArtboards": true})).unwrap());
+    let ai = data(s.execute("file.saveCopy", &json!({"format": "ai", "aiVersion": "7"})).unwrap());
+    assert!(eps.starts_with(&[0xC5, 0xD0, 0xD3, 0xC6]) && ai.starts_with(b"%!PS"));
+    let hires = b"%!PS-Adobe-3.0 EPSF-3.0\n%%BoundingBox: 0 0 101 41\n%%HiResBoundingBox: 0 0 100.5 40.25\n%%EndComments\n0 0 1 setrgbcolor 0 0 50 20 rectfill\n";
+    let letter = b"%!PS\n1 0 0 setrgbcolor 72 72 144 72 rectfill\nshowpage\n";
+    let bare = b"%!\n0 0 1 setrgbcolor 100 100 50 50 rectfill\nshowpage\n";
+    for (name, bytes, size) in [
+        ("art.eps", &eps[..], (300.0, 200.0)),
+        ("legacy.ai", &ai, (101.0, 51.0)),
+        ("hires.eps", hires, (100.5, 40.25)),
+        ("page.ps", letter, (612.0, 792.0)),
+        ("bare.ps", bare, (612.0, 792.0)),
+    ] {
+        let v = s.execute("document.pdfInfo", &json!({"dataBase64": b64(bytes), "thumbnail": 1, "thumbnailSize": 100})).unwrap();
+        let png = vectorcraft_format::base64_decode(v["thumbnail"].as_str().unwrap()).unwrap();
+        let img = image::load_from_memory(&png).unwrap();
+        assert_eq!(img.width().max(img.height()), 100, "{name}");
+        let mut v = v;
+        v["thumbnail"] = json!("png");
+        let page = json!({"width": size.0, "height": size.1, "rotation": 0, "boxes": {}});
+        assert_eq!(v, json!({"pages": 1, "needsPassword": false, "pageInfo": [page], "thumbnail": "png"}), "{name}");
+        s.execute("document.open", &json!({"name": name, "dataBase64": b64(bytes), "editingData": false})).unwrap();
+        let board = s.doc().unwrap().doc.artboards[0].rect;
+        assert_eq!((board.width(), board.height()), size, "{name}: the page document.open reads");
+    }
+    let e = s.execute("document.pdfInfo", &json!({"dataBase64": b64(&eps), "thumbnail": 2})).unwrap_err().to_string();
+    assert!(e.contains("no page 2"), "{e}");
+}
+
 /// A page showing only text, with an editor's private data when `private`.
 fn text_page(private: bool, also: &str) -> PdfPage {
     PdfPage {

crates/eps/src/import/mod.rs

@@ -186,13 +186,27 @@ pub fn import(bytes: &[u8]) -> Result<Imported, String> {
     import_with(bytes, true)
 }
 
-/// [`import`], an Illustrator EPS through the editing copy of its art only when `editing_data`
-/// (else what its page prints, as any EPS).
-pub fn import_with(bytes: &[u8], editing_data: bool) -> Result<Imported, String> {
+/// The PostScript of an EPS or PostScript file (behind its binary header, if it has one).
+fn program(bytes: &[u8]) -> Result<&[u8], String> {
     let (ps, _) = crate::sections(bytes).ok_or("the file's preview header points outside the file")?;
     if !ps.starts_with(b"%!") {
         return Err("this is not a PostScript file".into());
     }
+    Ok(ps)
+}
+
+/// An EPS or PostScript file's page at the origin, read from its comments without running its
+/// program: its bounding box (`%%HiResBoundingBox` when it has one), a US Letter page without
+/// one. [`import_with`] runs the program on the same page when it reads what the page prints.
+pub fn page(bytes: &[u8]) -> Result<Rect, String> {
+    let [llx, lly, urx, ury] = Dsc::read(program(bytes)?).bbox.unwrap_or(LETTER);
+    Ok(Rect::new(0.0, 0.0, urx - llx, ury - lly))
+}
+
+/// [`import`], an Illustrator EPS through the editing copy of its art only when `editing_data`
+/// (else what its page prints, as any EPS).
+pub fn import_with(bytes: &[u8], editing_data: bool) -> Result<Imported, String> {
+    let ps = program(bytes)?;
     let dsc = Dsc::read(ps);
     // A legacy `.ai` VectorCraft wrote: its prolog prints the art plainly (gradients flat, no
     // type), and its program has all of it, which is read as the format (as before the file

crates/eps/src/lib.rs

@@ -37,7 +37,7 @@ mod ps;
 mod scene;
 mod tiff;
 
-pub use import::{Imported, ai_alone, family_style, import, import_with, is_loss, layered_ai};
+pub use import::{Imported, ai_alone, family_style, import, import_with, is_loss, layered_ai, page};
 pub use legacy_ai::{HiddenObjects, LegacyAiOptions, LegacyAiOutput, export_legacy_ai};
 pub use print::{PrintJob, PrintPage, print};
 

crates/ui-egui/src/i18n/cs.tsv

@@ -4356,6 +4356,7 @@ imageTrace	Outline	Obrys
 @msg	object {id} is not a selected top-level object	objekt {id} není vybraný objekt nejvyšší úrovně
 @msg	page size {w} × {h}	velikost stránky {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	stránka {0} neexistuje (PDF jich má {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: stránka {n} neexistuje (soubor má 1)
 @msg	paste unavailable	vložení není k dispozici
 @msg	path is already closed	cesta už je uzavřená
 @msg	paths contain invalid coordinates	cesty obsahují neplatné souřadnice

crates/ui-egui/src/i18n/de.tsv

@@ -3993,6 +3993,7 @@ theme	Appearance	Erscheinungsbild
 @msg	object {id} is not a selected top-level object	Objekt {id} ist kein ausgewähltes Objekt der obersten Stufe
 @msg	page size {w} × {h}	Seitengröße {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	Seite {0} ist nicht vorhanden (die PDF-Datei hat {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: Seite {n} ist nicht vorhanden (die Datei hat 1)
 @msg	paste unavailable	Einfügen nicht verfügbar
 @msg	path is already closed	der Pfad ist bereits geschlossen
 @msg	paths contain invalid coordinates	die Pfade enthalten ungültige Koordinaten

crates/ui-egui/src/i18n/el.tsv

@@ -4032,6 +4032,7 @@ theme	Appearance	Εμφάνιση
 @msg	object {id} is not a selected top-level object	το αντικείμενο {id} δεν είναι επιλεγμένο αντικείμενο ανώτατης βαθμίδας
 @msg	page size {w} × {h}	μέγεθος σελίδας {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	η σελίδα {0} δεν υπάρχει (το PDF έχει {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: η σελίδα {n} δεν υπάρχει (το αρχείο έχει 1)
 @msg	paste unavailable	η επικόλληση δεν είναι διαθέσιμη
 @msg	path is already closed	η διαδρομή είναι ήδη κλειστή
 @msg	paths contain invalid coordinates	οι διαδρομές περιέχουν μη έγκυρες συντεταγμένες

crates/ui-egui/src/i18n/es.tsv

@@ -4055,6 +4055,7 @@ axis	Both	Ambos
 @msg	object {id} is not a selected top-level object	el objeto {id} no es un objeto seleccionado de nivel superior
 @msg	page size {w} × {h}	tamaño de página {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	la página {0} no existe (el PDF tiene {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: la página {n} no existe (el archivo tiene 1)
 @msg	paste unavailable	pegar no está disponible
 @msg	path is already closed	el trazado ya está cerrado
 @msg	paths contain invalid coordinates	los trazados contienen coordenadas no válidas

crates/ui-egui/src/i18n/fi.tsv

@@ -4279,6 +4279,7 @@ imageTrace	Outline	Ääriviiva
 @msg	object {id} is not a selected top-level object	objekti {id} ei ole valittu ylimmän tason objekti
 @msg	page size {w} × {h}	sivun koko {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	sivua {0} ei ole olemassa (PDF-tiedostossa on {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: sivua {n} ei ole olemassa (tiedostossa on 1)
 @msg	paste unavailable	liittäminen ei ole käytettävissä
 @msg	path is already closed	polku on jo suljettu
 @msg	paths contain invalid coordinates	polut sisältävät virheellisiä koordinaatteja

crates/ui-egui/src/i18n/fr.tsv

@@ -4052,6 +4052,7 @@ axis	Both	Les deux
 @msg	object {id} is not a selected top-level object	l’objet {id} n’est pas un objet sélectionné de premier niveau
 @msg	page size {w} × {h}	format de page {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	la page {0} n’existe pas (le PDF en a {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail : la page {n} n’existe pas (le fichier en a 1)
 @msg	paste unavailable	collage indisponible
 @msg	path is already closed	le tracé est déjà fermé
 @msg	paths contain invalid coordinates	les tracés contiennent des coordonnées non valides

crates/ui-egui/src/i18n/hu.tsv

@@ -4713,6 +4713,7 @@ imageTrace	Outline	Körvonal
 @msg	Packaged {n} file(s){note}	Becsomagolt fájlok: {n}{note}
 @msg	page size {w} × {h}	oldalméret: {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	nincs ilyen oldal: {0} (a PDF oldalszáma: {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: nincs ilyen oldal: {n} (a fájl oldalszáma: 1)
 @msg	panel group is empty	a panelcsoport üres
 @msg	panel must name a registered panel	a panel egy regisztrált panelt kell megnevezzen
 @msg	paste unavailable	a beillesztés nem érhető el

crates/ui-egui/src/i18n/it.tsv

@@ -4094,6 +4094,7 @@ axis	Both	Entrambi
 @msg	object {id} is not a selected top-level object	l'oggetto {id} non è un oggetto selezionato di primo livello
 @msg	page size {w} × {h}	dimensioni pagina {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	la pagina {0} non esiste (il PDF ne ha {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: la pagina {n} non esiste (il file ne ha 1)
 @msg	paste unavailable	impossibile incollare
 @msg	path is already closed	il tracciato è già chiuso
 @msg	paths contain invalid coordinates	i tracciati contengono coordinate non valide

crates/ui-egui/src/i18n/ja.tsv

@@ -4166,6 +4166,7 @@ swatch	Bright Violet	ビビッドバイオレット
 @msg	cannot read PDF: {0}	PDF を読み込めません: {0}
 @msg	invalid PDF setting: {0}	PDF の設定が正しくありません: {0}
 @msg	page {0} does not exist (the PDF has {1})	ページ {0} は存在しません (この PDF のページ数は {1} です)
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: ページ {n} は存在しません (このファイルのページ数は 1 です)
 @msg	the PDF has no pages	PDF にページがありません
 @msg	the PDF is password-protected: give its password	この PDF はパスワードで保護されています: パスワードを入力してください
 @msg	the PDF password is wrong	PDF のパスワードが正しくありません

crates/ui-egui/src/i18n/ko.tsv

@@ -4098,6 +4098,7 @@ theme	Appearance	외관
 @msg	cannot read PDF: {0}	PDF를 읽을 수 없습니다: {0}
 @msg	invalid PDF setting: {0}	잘못된 PDF 설정: {0}
 @msg	page {0} does not exist (the PDF has {1})	페이지 {0}이(가) 없습니다(PDF의 페이지 수: {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: 페이지 {n}이(가) 없습니다(파일의 페이지 수: 1)
 @msg	the PDF has no pages	PDF에 페이지가 없습니다
 @msg	the PDF is password-protected: give its password	PDF가 암호로 보호되어 있습니다: 암호를 입력하세요
 @msg	the PDF password is wrong	PDF 암호가 올바르지 않습니다

crates/ui-egui/src/i18n/pl.tsv

@@ -4180,6 +4180,7 @@ imageTrace	Outline	Kontur
 @msg	object {id} is not a selected top-level object	obiekt {id} nie jest zaznaczonym obiektem najwyższego poziomu
 @msg	page size {w} × {h}	rozmiar strony {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	strona {0} nie istnieje (PDF ma {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: strona {n} nie istnieje (plik ma 1)
 @msg	paste unavailable	wklejanie niedostępne
 @msg	path is already closed	ścieżka jest już zamknięta
 @msg	paths contain invalid coordinates	ścieżki zawierają nieprawidłowe współrzędne

crates/ui-egui/src/i18n/pt-br.tsv

@@ -3636,6 +3636,7 @@ axis	Both	Ambos
 @msg	object {id} is not a path	o objeto {id} não é um traçado
 @msg	page size {w} × {h}	tamanho da página {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	a página {0} não existe (o PDF tem {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: a página {n} não existe (o arquivo tem 1)
 @msg	paste unavailable	colar indisponível
 @msg	path is already closed	o traçado já está fechado
 @msg	paths contain invalid coordinates	os traçados contêm coordenadas inválidas

crates/ui-egui/src/i18n/ru.tsv

@@ -4090,6 +4090,7 @@ axis	Both	Оба
 @msg	object {id} is not a selected top-level object	объект {id} не является выделенным объектом верхнего уровня
 @msg	page size {w} × {h}	размер страницы {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	страница {0} не существует (в PDF {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: страница {n} не существует (в файле 1)
 @msg	paste unavailable	вставка недоступна
 @msg	path is already closed	контур уже замкнут
 @msg	paths contain invalid coordinates	контуры содержат недопустимые координаты

crates/ui-egui/src/i18n/sv.tsv

@@ -3980,6 +3980,7 @@ axis	Both	Båda
 @msg	object {id} is not a selected top-level object	objekt {id} är inte ett markerat objekt på toppnivå
 @msg	page size {w} × {h}	sidstorlek {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	sidan {0} finns inte (PDF-filen har {1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: sidan {n} finns inte (filen har 1)
 @msg	paste unavailable	inklistring är inte tillgänglig
 @msg	path is already closed	banan är redan sluten
 @msg	paths contain invalid coordinates	banorna innehåller ogiltiga koordinater

crates/ui-egui/src/i18n/uk.tsv

@@ -4078,6 +4078,7 @@ axis	Both	Обидві
 @msg	object {id} is not a selected top-level object	об’єкт {id} не є виділеним об’єктом верхнього рівня
 @msg	page size {w} × {h}	розмір сторінки {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	сторінка {0} не існує (в PDF{1})
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: сторінка {n} не існує (у файлі 1)
 @msg	paste unavailable	вставка недоступна
 @msg	path is already closed	контур вже замкнутий
 @msg	paths contain invalid coordinates	контури містять неприпустимі координати

crates/ui-egui/src/i18n/vi.tsv

@@ -4362,6 +4362,7 @@ theme	Appearance	Giao diện
 @msg	Packaged {n} file(s){note}	Đã đóng gói {n} tệp{note}
 @msg	page size {w} × {h}	kích thước trang {w} × {h}
 @msg	page {0} does not exist (the PDF has {1})	trang {0} không tồn tại (PDF có {1} trang)
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail: trang {n} không tồn tại (tệp có 1 trang)
 @msg	panel group is empty	nhóm bảng trống
 @msg	panel must name a registered panel	panel phải đặt tên bảng đã đăng ký
 @msg	paste unavailable	dán không khả dụng

crates/ui-egui/src/i18n/zh-hans.tsv

@@ -3911,6 +3911,7 @@ imageTrace	Outline	轮廓
 @msg	cannot read PDF: {0}	无法读取 PDF：{0}
 @msg	invalid PDF setting: {0}	PDF 设置无效：{0}
 @msg	page {0} does not exist (the PDF has {1})	页面 {0} 不存在 (该 PDF 有 {1} 页)
+@msg	thumbnail: no page {n} (the file has 1)	thumbnail：页面 {n} 不存在 (该文件有 1 页)
 @msg	the PDF has no pages	该 PDF 没有页面
 @msg	the PDF is password-protected: give its password	该 PDF 受密码保护：请提供其密码
 @msg	the PDF password is wrong	PDF 密码错误

docs/mcp.md

@@ -640,7 +640,9 @@ Opening a PDF (or `.ai`) imports every page as an artboard and layer; `document.
 `cropTo` (`bounding` (the art's bounds), `art`, `crop` (default), `trim`, `bleed`, `media`: the box each artboard gets;
 with `trim` the bleed box round it becomes the document's bleed, and a PDF-compatible `.ai` or a PDF saved with its editing data opens on its trim boxes for
 `crop`, its crop box taking the bleed in) and `password` for an encrypted file. `document.pdfInfo` reads a file without opening it: the page count, each page's
-size and boxes, `needsPassword`, and with `thumbnail: n` a PNG of page n. A page whose `UserUnit` (PDF 1.6) is above 1
+size and boxes, `needsPassword`, and with `thumbnail: n` a PNG of page n. It reads a PostScript file (an EPS, a `.ps`
+file, a `.ai` in PostScript form) as one page the size of its bounding box (a US Letter page without one), with an
+empty `boxes`, and `thumbnail: 1` shows what that page prints. A page whose `UserUnit` (PDF 1.6) is above 1
 opens at its size in points, the file's numbers times the `UserUnit` (one above 75,000 counts as 75,000), and
 `document.pdfInfo` gives its size and boxes in points too. A `.ai` whose editing data has its artboards in the units of
 such a page opens from that data at the page's size.

docs/target-app-parity.md

@@ -712,6 +712,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
     Placed (linked) files in a `.ai`'s editing data come in as linked images in their place, each showing the low-resolution preview the file keeps of it until its file is found or relinked in the Links panel (a file found next to the document or at its path is read as the document opens). A file with them no longer falls back to its PDF part, so its guides, sublayers and hidden objects open (#1264; `crates/eps/src/import/ai/tests.rs`, `crates/engine/src/tests_links.rs`). In a file opened that way, a gradient with stops in the middle runs its whole ramp across its shape and a gradient object no longer passes its fill to the next path (#1390); text objects with an appearance keep their own text and frame, type of hidden layers stays hidden, and type on later artboards lands on its text objects (#1391); area type whose frame is too short for a line of the fallback font shows its first line, the frame made taller with a warning in the open result (#1392).
   - EPS and DXF in and out, EMF/WMF in and out; PNG (with PNG-8), JPEG, WebP, GIF, TIFF, BMP, Targa and layered PSD export; grayscale TIFFs with an alpha channel or other extra channels place, relink and open, the alpha as the image's transparency (#1466 in part; CCITT Group 3 and planar files with extra channels are not read); PSD and PSB files open and place, linked or embedded, as their merged image in every colour mode and depth (#918). EPS import runs a PostScript Level 3 interpreter written from the PostScript Language Reference: resource categories and `resourceforall`, local and global VM (`currentglobal`/`setglobal`/`gcheck`), `clipsave`/`cliprestore`, subarrays and substrings that share storage, the standard dictionaries in `systemdict`, `dictstack`, `internaldict`, executable filters and strings, `load` by any key, `//name` immediate names, `token`, `execform`, user paths, `cshow`, `rootfont`, `cachestatus`, colour rendering and halftone queries, file `status` and data read with `flushfile`, and `pdfmark` marks dropped (Discord feedback, #466, #469, #474). Masked images (`ImageType 3` in its three interleavings) and reusable streams are read, and an image's several data sources are read in turn, as the reference defines (procedures that read one file get their own rows: such images came in banded, #498). `restore` puts dictionaries back as they were at the `save`, so programs that count their saves in a dictionary read to their end (part of #505). Tiling patterns come in as pattern swatches, uncoloured ones too; Type 3 fonts' glyphs as their outlines, spaced by `ashow`/`widthshow`/`xshow`/`kshow`; mesh and function-based shadings (types 1, 4–7) as gradient meshes; sampled functions (type 0) and Flate/LZW predictors are read. It is tested with programs written from the specification in the ways common generators use these features; Inkscape/cairo EPS files open as vectors. When a file's PostScript still can't be read, it opens as its TIFF preview, its Windows metafile preview (as vectors) or its EPSI preview, and the warning (in the status bar, `document.open`/`app.open`/MCP `open_file` replies and `vectorcraft-cli info`) names the error, the operator that raised it and the procedures it ran in. Legacy PostScript `.ai` files (Illustrator 3–8, written with the prolog that defines their operators) keep their groups and nested groups (`u` … `U`), between and inside clipping groups; EPS and EMF/WMF import nest clips (and groups) at most 128 deep, so a hostile file can't exhaust the stack. DXF TEXT justified Fit or Aligned spans its two points (stretched, or scaled as a whole). PDF export writes type as real, searchable text in embedded subset fonts by default, as Illustrator's PDF presets do (Convert Text to Outlines is an option; printer's marks stay shapes), so text-heavy PDFs stay small (#733). DXF export writes each fill as its outlines followed by its hatch, so laser and cutter software, which skips hatches, gets filled art and type too (#546).
   - The Open and Place dialogs list PostScript `.ps` files and `.epsf` files. A `.ps` file opens and places through the EPS reader (its first page), also when its header is only `%!`, as the `ps` format, which exports don't write (Print to PostScript does); an `.epsf` file opens and places as EPS. Copied in a file manager, these files paste as EPS, and `clipboard.importEps` also reads PostScript whose header is only `%!` (`crates/engine/src/cmd/fileio/tests_epsimport.rs`).
+    `document.pdfInfo` reads an EPS, a `.ps` file or a `.ai` in PostScript form as one page the size of its bounding box (a US Letter page without one), and its `thumbnail: 1` is a PNG of what that page prints (`crates/engine/src/cmd/fileio/tests_pdfimport.rs`).
   - Targa files (`.tga`, `.vda`, `.icb`, `.vst`) open, place linked or embedded, relink and update at their pixel size: color-mapped, true-color and black-and-white, raw or run-length encoded, in any of the four row orders. The image descriptor's attribute bits and the extension area's Attributes Type decide the transparency: a file with no attribute bits, or with attribute data the Attributes Type calls undefined, opens opaque; with one bit, a 16-bit true-color pixel takes that bit as its alpha, and a color-mapped pixel takes the bit of the 16-bit color map entry it indexes; premultiplied colors are divided by their alpha. Open and Place recognize a Targa file by its extension, and `clipboard.importImage` and Glass's Load Texture… by its header; a Targa file copied in a file manager pastes as a bitmap (`crates/engine/src/cmd/fileio/tests_tiffbmp.rs`, `crates/engine/src/tests_links.rs`).
   - EPS and DXF in and out, EMF/WMF in and out; PNG (with PNG-8), JPEG, WebP, GIF, TIFF, BMP, Targa and layered PSD export; grayscale TIFFs with an alpha channel or other extra channels place, relink and open, the alpha as the image's transparency (#1466 in part); PSD and PSB files open and place, linked or embedded, as their merged image in every colour mode and depth (#918). EPS import runs a PostScript Level 3 interpreter written from the PostScript Language Reference: resource categories and `resourceforall`, local and global VM (`currentglobal`/`setglobal`/`gcheck`), `clipsave`/`cliprestore`, subarrays and substrings that share storage, the standard dictionaries in `systemdict`, `dictstack`, `internaldict`, executable filters and strings, `load` by any key, `//name` immediate names, `token`, `execform`, user paths, `cshow`, `rootfont`, `cachestatus`, colour rendering and halftone queries, file `status` and data read with `flushfile`, and `pdfmark` marks dropped (Discord feedback, #466, #469, #474). Masked images (`ImageType 3` in its three interleavings) and reusable streams are read, and an image's several data sources are read in turn, as the reference defines (procedures that read one file get their own rows: such images came in banded, #498). `restore` puts dictionaries back as they were at the `save`, so programs that count their saves in a dictionary read to their end (part of #505). Tiling patterns come in as pattern swatches, uncoloured ones too; Type 3 fonts' glyphs as their outlines, spaced by `ashow`/`widthshow`/`xshow`/`kshow`; mesh and function-based shadings (types 1, 4–7) as gradient meshes; sampled functions (type 0) and Flate/LZW predictors are read. It is tested with programs written from the specification in the ways common generators use these features; Inkscape/cairo EPS files open as vectors. When a file's PostScript still can't be read, it opens as its TIFF preview, its Windows metafile preview (as vectors) or its EPSI preview, and the warning (in the status bar, `document.open`/`app.open`/MCP `open_file` replies and `vectorcraft-cli info`) names the error, the operator that raised it and the procedures it ran in. Legacy PostScript `.ai` files (Illustrator 3–8, written with the prolog that defines their operators) keep their groups and nested groups (`u` … `U`), between and inside clipping groups; EPS and EMF/WMF import nest clips (and groups) at most 128 deep, so a hostile file can't exhaust the stack. DXF TEXT justified Fit or Aligned spans its two points (stretched, or scaled as a whole). PDF export writes type as real, searchable text in embedded subset fonts by default, as Illustrator's PDF presets do (Convert Text to Outlines is an option; printer's marks stay shapes), so text-heavy PDFs stay small (#733). DXF export writes each fill as its outlines followed by its hatch, so laser and cutter software, which skips hatches, gets filled art and type too (#546).
   - TIFFs that store each channel as its own plane (PlanarConfiguration 2) place, relink and open as the same image stored pixel by pixel does, 8 and 16 bits: grayscale with an alpha channel or other extra channels, and CMYK with or without them. A planar CMYK TIFF keeps its ink amounts and is stored as a CMYK TIFF with each pixel's inks together, at the file's resolution. A TIFF whose header claims more strips or tiles than can be counted is refused as too large to draw (#1466 in part; `crates/engine/src/cmd/fileio/tests.rs`).