Nico Weber

LibPDF+pdf: Enough stuff to be able to read password-protected PDFs created by macOS

1

In particular, implements support for AES in LibPDF. Also fixes an issue where the linearization detection logic would crash on inputs where the first object is an encrypted compressed stream...

ArgsParser: Parsing of flags after positional arguments is not self-consistent

3

This works: Build/lagom/bin/pdf --render out.png ~/Downloads/0000/0000342.pdf --page 5 This doesn't: Build/lagom/bin/pdf --render out.png ~/Downloads/0000/0000342.pdf --page 5 --dump-contents It does work if I move the `--dump-contents` in front of the name...

jpeg decoder doesn't decode colors quite right

6

I think the jpeg decoder might have channels off by a small amount, due to various things suggesting it: 1. If I make `green.png` filled with (0, 255, 0) and...

This is useful if you want an array with an explicit type but still want its size to be inferred. --- …and random minor stuff along the way, such as...

...and do string expansion at the call site. CID-keyed fonts treat the charset as CIDs instead of as SIDs, so having access to the SIDs in numberic form will be...

This reverts commit 52afa936c48f62df8a9b7fec0e78fa75d55407ec. No longer necessary after #23122 -- turns out things work better when you do them right. No behavior change.

drawing clipping rects on 0000612.pdf takes an unreasonable amount of time

5

1. Get 0000.zip from here: https://downloads.digitalcorpora.org/corpora/files/CC-MAIN-2021-31-PDF-UNTRUNCATED/zipfiles/0000-0999/ 2. Open 0000612.pdf 3. Go to page 27 4. Toggle Debug->Show Clipping Paths Expected: Clipping paths draw Actual: App hangs, things get super slow...

LibPDF/CFF: Add code for fdselect parsing

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This is one of the two top dict entries we need for CID-keyed fonts. We don't send any CID-keyed font data into the CFF parser yet, so no behavior change.

LibPDF/CFF: Add enum values for remaining PrivDictOperators

1

No behavior change, except that we now dbgln() if we see a PrivDictOperator we don't know about. (I haven't seen this in practice, but I found this useful while debugging...