Includes #4325#1952#4180#2529#4320#4805, preserving their original histories.
Keep paragraph alignment and hard/soft wrap metadata together; retain CCITT/downsampling/RGB ownership guards with bounded JBIG2 export and exact-copy symbol encoding.
Combined interaction regressions added. Validation pending.
pdfcraft_filters::encode_jbig2 stores each distinct mark of a 1-bit
image (8-connected black pixels, at most 256 a side) once, as a symbol
in a symbol dictionary, and places its exact copies with an immediate
lossless text region that refers to it. Larger marks, and in a second
plan marks that occur once, go to a generic region over their box. It
keeps whichever of that and the generic coding (encode_jbig2_generic,
unchanged) is smaller. Only exact copies share a symbol, so the stream
decodes to the same bits.
Written from the JBIG committee's ISO/IEC 14492 Final Committee Draft:
6.4 and 6.5 (text region and symbol dictionary decoding), 7.2, 7.4.2
and 7.4.3 (segment headers and syntax) and Annex A (the integer coders,
checked against its worked example and Table A.1).
On six pages of rendered 300 dpi text the output is 28% of the generic
coding's size and 17% of Group 4's, at about 100 ms a page; hayro-jbig2
and Poppler (pdfimages) both decode it to the original bits. Scans,
whose copies of a letter are seldom identical, gain little: that needs
refinement coding. A dictionary shared between pages (/JBIG2Globals)
is a further step.
The optimizer's Monochrome Images > JBIG2 (lossless) and doc_optimize
mono jbig2 use it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01P6yUtvWGPsJpMLyh6pxSXG
PdfCraft's bootstrap renderer draws byte-aligned Group 3 whose fill ends
each end-of-line code on a byte (as TIFF writes it) as other rows than
decode_ccitt reads (black box, at every /K, with /EndOfLine or not:
mostly the first row, then blank). Redaction cleared pixels in the
picture decode_ccitt reads, so a mark over what PdfCraft showed needn't
cover what was cleared, and content shown blank stayed in the copy. Such
an image (/K 0 or more, /EncodedByteAlign) is now removed whole, as
every CCITT image was before this PR; Group 3 off bytes and Group 4 are
still cleared.
The image's parameters come from Document::fax_params, the reading of a
fax image's /DecodeParms entry that decoded_image already did, now on
its own (it was to come with #4404, which uses it too). The redaction
README, the module doc, the redaction and core.image-filters notes and
the spec parity table's status line and revision row say so, and the
core.image-filters note now records the renderer's misdrawing.
group_3_on_bytes_is_removed_whole_and_other_fax_images_cleared: a white
16 × 2 picture, checked to decode as such, is removed whole on bytes (no
codes; codes at /K 0; at /K 1 with /EncodedByteAlign by reference) and
cleared off bytes and as Group 4 on bytes. It fails without the guard;
cargo-mutants catches every viable mutant of it.
From reviews with the pdfcraft-review skill.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01P6yUtvWGPsJpMLyh6pxSXG
- Redacting a CCITT image went through decoded_image, which undoes the
filters before the fax decoder up to MAX_DECODED, so a Flate bomb in
front of a fax image cost a gigabyte while every other image stops at
twice its raster. Document::decoded_image_within takes a bound, and
redaction gives a fax image's code about a byte per pixel. A fax image
cut short, or behind a bomb, is removed whole; a busy one whose code
is bigger than twice its raster is still cleared.
- Every image is now decoded through decoded_image_within, which reads
/DecodeParms through Document::with_direct_parms: given by reference,
the numbers inside (/Predictor 7 0 R) included. That reading was first
written here and has moved down to #4304. The predictor test now covers
the dictionary, an array's entry and the number itself given by
reference; read without them, the cleared bytes drift off the covered
pixel and the covered sample stays in the copy.
From reviews with the pdfcraft-review skill.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The PDF Optimizer and Reduce File Size downsampled colour and grey images
but not black-and-white ones. Settings::mono is now MonoSettings {
downsample, target_ppi, above_ppi, compression }, 300 ppi above 450 ppi
and CCITT Group 4 by default (Monochrome Images ▸ Downsample to;
doc_optimize mono: { downsample, ppi, above_ppi, compression }).
A 1-bit image or image mask (no filter, general-purpose filters, or CCITT
fax after any of them) and eight-bit grey of only black and white are averaged by
area: each new pixel takes the sample covering more of it, a tie 0, so a
dark line half a new pixel wide stays. They are stored as Group 4, or as
1-bit Flate when that is smaller; with Retain a resampled image keeps its
kind of compression. Images with a soft mask keep their size.
CCITT decoding moves from Export ▸ Images into pdfcraft-filters
(decode_ccitt, CcittParams, through hayro-ccitt), and
pdfcraft_cos::Document::decoded_image reads a fax image's /DecodeParms
for it (undoing filters before CCITT, such as ASCII85Decode, with any
/DecodeParms given by reference made direct first), so export
and the optimizer share one reader, and Group 4 scans can be
downsampled. A 600 ppi text page went from 79 KB to 40 KB.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BfMGHQNgdq5yf5tKZHGR3z
JBIG2 images, and JBIG2 stencil masks, were reported as "can't be exported
yet", so an image the Optimizer stores as JBIG2 would stop exporting. They
are now decoded with hayro-jbig2 (already in the tree through hayro), with
their /JBIG2Globals from a DecodeParms dictionary or array, as JBIG2Decode
gives them: black as 0 (ISO 32000-2 §7.4.7). Unreadable globals, a JBIG2
page of another width, or fewer rows than the image skip the image; rows
past its height are dropped, so the output is bounded by the checked size.
docs/pdf-spec-parity.md §7.4 no longer says there is no JBIG2 encoding.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BfMGHQNgdq5yf5tKZHGR3z
docs/pdf-spec-parity.md's §7.4 row still said there was no CCITT
encoding; it names the Optimizer's Group 4 encoder now, with a status
line and a revision row.
From reviews with the pdfcraft-review skill.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01P6yUtvWGPsJpMLyh6pxSXG
* M4: Document Properties has a Custom tab for custom properties
Document Properties has a new Custom tab between Fonts and Advanced. It
lists the document's custom properties, and Name and Value fields with
Add, Update and Delete edit the list. Clicking a listed property fills
the fields with it. OK writes the changes through SetInfo in the
existing "Change document properties" step, so one undo reverts them
with the other tabs' changes.
Add is off for an empty value, a name already listed, a name that
check_custom_key refuses (its message is the button's tooltip), and a
name the file already uses for an entry the list leaves out (not text,
only padding, or past the 256 listed). A property already in the file
under a refused name or a name that is not UTF-8 is listed, and Add,
Update and Delete stay off for it, so OK cannot fail on it or write a
different key.
Clearing an /Info entry now removes it when /Info is a dictionary
written directly in the trailer. set_info_entry returned without a
change there, so a delete in the Custom tab, a cleared Description field
and a doc_set_info clear left the entry in the file. It now writes a
copy without the entry as a new indirect /Info.
The engine re-exports check_custom_key and adds Document::has_info
(organize::has_info). set_option("dialog", "custom") opens the tab.
* Contributors: add dotCooCoo (Robert Lee)
* M4: Add in the Custom tab stops at the 256 properties the tab lists
Document Properties > Custom lists at most 256 properties, so a property
added past that was saved but left out of the list when the dialog opened
again. Add is now off once the tab's list or the file's own list holds 256;
a new name goes after the file's entries, so a file with more than 256 keeps
Add off after a Delete as well.
Layer options in the Layers panel header resets every layer to the state the
file's default configuration (/OCProperties /D) gives it, as Acrobat does.
Visibility is view state, so the reset doesn't mark the document changed and
doesn't enter Undo. doc_info now reports each layer's initial state.
Each page's presentation settings of ISO 32000-2 s12.4.4 are read with the
spec's defaults for what is missing or out of range: the transition style,
duration, dimension, motion, direction, Fly scale and backdrop, and the
/Dur display time. doc_info lists them; pdfcraft-cli info counts them.
This is the data full screen needs to play transitions and auto-advance;
playing and editing them stay planned.
Refs #379, #2070.
Claude-Session: https://claude.ai/code/session_01RUNQSPVXx3dDBabRZHAnjz
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
`set_info` changed only `/Info`. Files that carry XMP (LibreOffice and Word
exports, PDF/A) kept the old dc:title and dc:creator, so viewers that read
XMP first kept showing the old title, and PDF/A preflight reported the two
as different (6.6.3).
The matching XMP property (Title dc:title, Author dc:creator, Subject
dc:description, Keywords pdf:Keywords, Creator xmp:CreatorTool, Producer
pdf:Producer) is now replaced where it stands, added in a description of
its own, or removed with an empty value. The packet is edited as text and
the rest of it stays byte for byte; files without XMP get none, and a
packet that isn't UTF-8 is left as it was.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* M7: open local GoToR PDF links natively
* GoToR links: read only regular .pdf files under a size cap; add missing translations
A GoToR link in an untrusted PDF could name /dev/zero (unbounded read), a FIFO
(UI thread hangs) or a directory. Both the UI path and the `link_open` tool now
go through `pdfcraft_engine::read_remote_document`, which requires a `.pdf`
extension and a regular file (metadata checked before opening) of at most
1 GiB, and stops reading if the file grows past the cap. Regression tests cover
directories, a /dev/zero symlink and a FIFO (unix) in the engine, the tool and
the UI.
Adds the four link notifications to all 20 catalogs and "The existing action
will be preserved." to el, es, pl, te and zh-hant.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
On upright horizontal text of unrotated pages the caret's tip goes to the
nearer character edge on the baseline, sized to the text; elsewhere it stays
at the click. The size is mapped to user space, so /UserUnit pages match.
Parity stays partial: snapping is UI-only.
AI-assisted (Claude Opus 5.5), reviewed by GPT-5.6-terra (Codex CLI).
Native review welcome.
Co-authored-by: Diego Ospina <diegozpy@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
The parity and roadmap docs were last refreshed before a batch of fixes
merged, so they still described closed issues as open problems.
- #774 (encrypted output rejected by Acrobat, fixed by #836): gap 1
removed from gaps.md; its remaining interop-suite work moved to gap 12.
Gap numbers are kept so existing "gap N" references stay valid.
- #756 (Windows printing, #847): Printers row, Print area and roadmap
rank 1 now name web printing as the remaining gap.
- #740 column select (#765), #759 1:1 touchpad scrolling (#868),
#810 Shift-Cmd-G (#835), #825 (#822).
- #844 multi-object move (#907): marked partial, same page only.
- #799, #800, #807, #809, #811, #815-#819, #821 (incl. the #816 panic):
gap 6 and the area tables list them as fixed.
Scores, readiness percentages and the stage are not re-judged; only the
rank-0 estimate drops by gap 1's 8-15 h (40-70 -> 32-55).
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Progress docs per craftrules standards/progress-docs.md: target-app parity, gaps, roadmap with alpha gate, readiness by audience (full / mainstream / essentials) with Opus 5.5 hours, and feature, format, PDF-spec, hardware, UI and localization parity docs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
FredApps