Nested repeating subforms multiplied their instances (up to 50 per level
over 64 levels), and an empty instance neither measured nor placed
anything, so it spent none of the measurement or item budgets. Each
instance now counts as a measurement, and layout stops with TooLarge
once the budget is spent.
Revocation checking decoded every /CRLs and /OCSPs entry under the
general 1 GiB stream limit and kept them all before parsing any, so one
compressed stream referenced many times multiplied decoding and memory.
Evidence now decodes lazily, each stream once and within the 2 MiB
evidence cap, with at most 1024 entries and 64 MiB per array.
Inspection built an annotation record, with owned copies of its text,
for every /Annots entry on every page, so one comment referenced many
times, a page-shared /Annots array, or many small comments sharing one
long /Contents string multiplied that text in memory. Pages are read in
order, an annotation or /Annots array already listed is skipped, and
the listing stops once the kept text and geometry pass 64 MiB.
Reading the colour space from an ICC header when /N is missing decoded
the whole profile under the general 1 GiB stream limit to look at four
bytes. The profile now decodes within 16 MiB; a larger one leaves the
component count unknown.
Snap geometry charged decoded bytes only on success, so a /Contents
array repeating one stream that inflates past the 16 MiB limit ran that
inflation for every entry without spending any budget. A tolerant decode
fails only on an unsupported filter or after producing the remaining
budget, so a failure now spends the rest of the budget and later parts
are skipped as truncated.
The listing read a measurement for every /Annots entry, so one annotation
referenced many times, or many small annotations sharing one indirect
2048-point vertex array, multiplied its points and text in memory. The
listing skips annotation references it has already read and stops,
marked truncated, once the kept points and text pass 32 MiB.
Both CMap streams decoded under the general 1 GiB stream limit, so a
small Flate stream of whitespace inflated to a gigabyte that was then
lexed on every font load. They now decode within 16 MiB, like the
font programs beside them, and a larger CMap is not read.
Looking for an already embedded full program decoded every candidate up
to 17 MiB, once per resource naming it, so a page whose PCFull resources
all alias one compressed stream, or many marked streams, made one text
edit inflate gigabytes. Candidates now decode within the program's own
length, each once per embedding, and at most 16 in all; the resource
check compares its CMap streams within their expected lengths too.
Image export decoded a stream lookup table under the general 1 GiB
stream limit although a table holds at most 1024 bytes, and every image
sharing the palette decoded it again. The table now decodes within
64 KiB and a larger one is refused for that image.
The link listing copied the action's URI into a new String for every
/Annots entry, so one annotation referenced many times, or many small
links sharing one long URI string, multiplied that string in memory.
The listing skips annotation references it has already listed and keeps
at most 16 MiB of web-address text; a link past that lists as an
uneditable action, which leaves it unchanged in the file.
The cloud border clamped bumps per edge only, so a polygon with many long
edges asked for 10,000 cubic segments on each one. The bump radius now
grows so the whole outline draws at most 20,000 bumps plus one per edge.
The parser pushed every array element and dictionary value with only a
nesting limit, so a small compressed object stream decoding to a long run
of '0 ' became tens of millions of Object values. Each top-level parse now
counts the objects it builds and fails past 4M, including inside
tolerated junk.
text_editor_fonts counted only the programs it kept against its 32 MiB
budget, so up to 128 aliases of one unusable program were each inflated
in full. Every decode now spends a shared 64 MiB allowance.
embedded_sfnt decoded each program with a fresh 16 MiB allowance and
charged nothing when the program turned out unusable, so a page whose
font resources all named one bad program inflated it once per alias.
embedded_sfnt_within charges every decode to a caller's DecodeBudget.
Callers with a tighter limit for one stream (an embedded font program)
need it alongside the shared allowance. A decode that runs past that
bound charges the bound, the work it took, so repeated failures still
spend the allowance.
The editor's page readers decoded every /Contents entry and every form
entry with a fresh 1 GiB allowance, and the reading-order image
inventory added a record per image draw in every form entered, so a few
shared forms drawing each other produced millions of records. Content
streams and form entries are decoded against one per-page DecodeBudget
(content past it is an error, so no edit rewrites a page from part of
its content; forms past it are reported truncated), and an inventory
past 100,000 image draws is refused.
The cover walk decoded every /Contents entry and every form draw with
a fresh 1 GiB allowance; the operator bound does not count whitespace,
so a large blank form drawn many times meant hours of decoding. The
walk charges a per-page DecodeBudget with the strict decoder, and
spending it fails the audit.
The interpreter entered a form again at every Do with only a nesting
limit, so a few shared forms drawing each other produced exponential
work in apply, sanitize and verify. Scope carries a per-page
DecodeBudget for form entries and form bytes; past it, apply refuses
the page and verification counts the form as possible residue. Page
content streams are decoded against a page budget too.
Each field action and document-script entry decoded its /JS stream
with a fresh 1 GiB allowance and kept its own copy, so many fields or
name-tree pairs naming one compressed stream retained gigabytes. A
reading of the fields, one field's actions, and the document scripts
each share a 64 MiB DecodeBudget for their script streams.
Pruning and page_as_form joined every /Contents entry with a fresh
1 GiB allowance each, so a page naming one compressed stream many
times became gigabytes. Both share one helper that decodes against a
per-page DecodeBudget and fails when it runs out.
Printing and the label text-direction check decoded every /Contents
entry with a fresh 1 GiB allowance, and the direction check re-entered
forms at every Do with only a depth limit, so a few hundred bytes of
nested repeated draws meant hundreds of thousands of form walks. Both
charge a per-page DecodeBudget: printing refuses a page whose content
runs past it, and the direction check stops reading there.
Image measurement and fragment merging decoded every /Contents entry
and every form occurrence with a fresh 1 GiB allowance, so repeated
references to one compressed stream multiplied memory. Both charge a
per-page DecodeBudget. A page whose content does not decode within it
is left unmerged, and its images are not resampled, since a use may be
missed; fragment merging no longer rewrites a page from content it
could not fully decode.
The checker decoded every /Contents entry and every form a page drew
with a fresh 1 GiB allowance each, so a page repeating one compressed
stream reference produced gigabytes. The two copies of the page-content
helper are one now, and it and the form walk charge a per-page
DecodeBudget.
MAX_DECODED bounds one decode, so a page whose /Contents repeats a
reference to one compressed stream, or a form drawn many times, gets a
fresh 1 GiB allowance per occurrence. DecodeBudget is one cumulative
decoded-byte allowance plus a form-entry count and a seen-set of stream
references, shared by a whole page walk. A decode that runs past the
remaining allowance spends all of it.
The audit returned the text under each cover whatever the document's
permissions, and the CLI and the automation tool printed it. A user
whose password withholds copying could read through the audit the text
that text extraction refuses them. The audit now reports every finding
for such a document with empty covered text; the owner password lifts
the restriction as it does elsewhere.
Every cover was compared with every text line of its page, and each
finding kept its own copy of the text it covered. Both grow with the
square of the content: a few megabytes of covers over one long line
meant hours of comparisons and gigabytes of report. The audit now
counts comparisons per page and covered-text bytes across the document
and fails with an error past either bound, never with a partial
report.
A text line joins compatible runs on one baseline, and the audit took
the line's last painting operator as its paint position. Text drawn
after a cover on the same baseline joined the covered words and moved
the line past the cover, so the covered words went unreported. The
audit now compares against the line's first painting operator: any
run painted before the cover is checked, and runs painted after it
in the same low-contrast color are unreadable on it too.
The annotation scan and the form XObject walk read /Subtype only as a
direct name. A /Subtype stored as a reference to the name read as
none, so a /Redact annotation or a covering form named that way was
skipped as an unrelated object and the page reported clean. Both now
follow the reference, and a reference that cannot be loaded fails the
audit.
The cover walk cleared the current path when it restored the graphics
state, but the current path is not part of the graphics state. A
rectangle built before Q and filled after it paints a box over the
text, and the audit missed it and reported the page clean.
Replaces the English placeholders added during the #2210 integration
(calculation order, text formatting, print, thumbnails, layers, comment
reshape and signature checks, plus the two signature wordings from
3e180944) with Finnish, and updates the fi.tsv sha256 and the entry
count in docs/localization.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
With a comment selected, the arrow keys scrolled the view (↑ ↓) or turned the page (← →), so
a text box, rectangle or line could only be placed with the mouse. Now an arrow key moves the
selected comment a screen pixel, and ⌘/Ctrl or Shift and an arrow ten, as Edit text nudges
objects; up is up on screen whatever the zoom, the page's rotation and the view's. Each press
is one undo step (Edit::MoveAnnotation). The keys are taken before the view's navigation,
which has them back once nothing is selected. Text markup stays with its text, and a locked
comment where it is.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A paragraph selected by its frame (or objects taken by an area selection) answered the
arrow keys and Escape but not Delete, so the only way to remove text was one typed
character at a time in the inline editor. Delete or Backspace now removes the whole
selection as one undo step: paragraphs and images last-first in their inventories, added
content after them, under the existing "Delete content" history label.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Review of #3849: both tests asserted `stderr.contains("No such file")`, which
is the Unix wording. On Windows the same error reads "The system cannot find
the file specified. (os error 2)", so `test (windows-latest)` failed on them.
Neither test is about the wording. What they are about:
- `a_flag_that_takes_no_value_does_not_swallow_the_file`: the error is about
`missing.pdf`, and is not "check-one: missing file" -- the file reached the
command instead of being eaten as `--edit`'s operand.
- `a_file_whose_name_starts_with_dashes_is_still_reachable`: the error names the
file the command could not open (`missing.pdf`, or `./--dash.pdf` for the
`info` case), and is not a usage error about a value or an unknown option.
Both now assert exactly that, plus the absence of our own usage phrases. Every
string they match is one this CLI prints, so the OS has no say in it.
A timestamp counted as trusted time whenever its signer's certificate
chained to a trusted certificate, whatever the certificate was issued
for. Any key from a trusted CA could then vouch for an arbitrary time.
Trusted time, for a document timestamp and for a signature's embedded
one, now also needs a certificate whose extended key usage includes
timeStamping, whose key usage allows signing, and which has no critical
extension PdfCraft doesn't process (RFC 3161 §2.3). The test timestamp
authority gets such a certificate.
Chain building accepted an intermediate CA without looking at its critical
extensions, which were checked only on the signer's certificate. A
subordinate CA limited by critical name constraints could vouch for a
signer outside its namespace, because PdfCraft does not enforce those
constraints. A CA certificate (other than a self-signed root, whose
limits are the trust store's business) with a critical extension
PdfCraft doesn't process is refused as an issuer, and the reason is
reported.
Revision checks compared objects only. A later revision that pointed the
trailer at another catalog already present in the signed file changed no
object, so the signature stayed valid while the reader showed a different
document. A /Root that differs from the signed revision's is now a
disallowed change to the document structure.
An OCSP response's signer counted as the issuer itself whenever its
certificate carried the issuer's subject name. A response naming its
responder by key hash could embed a certificate for any key with the
issuer's name copied in, skip the delegation checks, and mark a valid
certificate revoked. Whether the responder is the issuer now follows from
how it was selected (the issuer's own name or key hash); every embedded
certificate must be signed by the issuer and carry the OCSP-signing
purpose.
The example passed a constant seed to set_encryption. AES-256 derives the
file key from the seed alone, so anyone could rebuild the key and read a
file it protected without either password. The seed now comes from the
operating system's randomness through RandomState, as in the engine.
The qpdf oracle test wrote into temp_dir()/pdfcraft-enc-<pid>, reusing the
directory if it existed and following any symlink inside it, so another
local account could prepare it and have the test overwrite a file of the
developer's. The directory now has an unpredictable name, is created by
the test (mode 0700 on Unix) and the files are created new.
aiongg
Combiler
Janiz-zzzandClaude Opus 5.5
Oliver HagmannandClaude Opus 5.5
HiteshandClaude Opus 5.5
Hamza
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