A character the applied font lacks is drawn as that font's missing-glyph
box (its .notdef, gid 0), on screen and in PDF, and Preflight lists the
characters by font ("Missing glyphs in <family> <style>: …", an error,
at most 20 named). A .notdef without an outline is drawn as a hollow box
across its advance, so a missing character never disappears. PDF draws
.notdef glyphs as paths, which PDF/A and PDF/UA accept. Kenten marks are
set in their text's font the same way.
The document setting Draw Missing Glyphs from Fallback Fonts
(DocSettings::glyph_fallback; Preferences > Composition,
document.preferences {glyphFallback}, undoable) draws them from fallback
fonts instead (the language-aware chains, then any font; kenten marks
from a fallback font, else a bullet). It is off in new documents and
IDML imports and on in files saved before it existed, which keep
drawing as they did. A missing font's substitute always uses fallback
fonts. The composition cache's signature includes the setting. Tests
whose Arabic comes from a fallback font turn the setting on.
A CMYK TIFF went into every PDF, PDF/X-4 included, as a DeviceRGB image:
load_image sent anything that wasn't JPEG, PNG, GIF or WebP through
designcraft_images::decode_rgba, and `image` decodes CMYK TIFFs to RGB. 100%
K came out as RGB black, which the press separates as four-colour black
(#35).
designcraft-images now reads a CMYK TIFF's ink values with the tiff crate
(the version `image` already uses): 8- or 16-bit, interleaved, opaque or
with unassociated alpha. PDF export writes them through krilla's CustomImage
as DeviceCMYK, as it does a CMYK JPEG, and leaves out the TIFF's own ICC
profile so the numbers go to the output intent's press unchanged. PDF/A
exports stay RGB. A CMYK TIFF this can't read (planar, premultiplied alpha,
another ink set, over 256 MiB) is still converted, now with a warning. The
screen keeps decoding to RGB.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A PDF/X-4 export (PDF 1.6) of a page with a placed PDF 1.7 (VectorCraft's
default, and most tools') failed at the very end with
designcraft-cli: PDF writer error: Pdf(PdfDocument(PdfDocumentRepr { .. }), VersionMismatch(Pdf17), None)
krilla refuses to embed a PDF newer than the file it writes. PDF 1.7 changed
nothing in how a page draws, so a 1.7 file now goes in as 1.6 (its header
relabelled, as qpdf --force-version=1.6 does) with a warning. A PDF 2.0
file, or one whose catalog declares 1.7, fails the export with a message
naming it. hayro-syntax moves from dev-dependencies to dependencies (krilla
already builds it) because the check names its PdfVersion.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New crate designcraft-pdf (L3): pages or spreads with MediaBox/TrimBox/BleedBox,
parent items with per-page folios, fills (solid + gradient swatches), aligned/dashed
strokes, corner options, opacity/blend, simple drop shadow, clipped images (JPEG
passthrough), and real text: composed glyph runs with embedded font subsets and
Unicode mapping from the story. CMYK as DeviceCMYK, RGB as DeviceRGB, spot swatches
as Separation, [Registration] as /All. Crop/bleed marks and page info. PDF/A-2b via
krilla; PDF/X-4 writes PDF 1.6 (output intent TODO).
Engine command file.exportPdf {path?, pages?, spreads?, bleed?, marks?, standard?,
compressImages?, title?, author?} (base64 when no path), CLI --export out.pdf with
--pdf-options, File > Export PDF... in the UI.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
skylar taylor-barrick