alcinnz, 21 days ago

• Parsed sounds; used by links, annotations, & embedding frameworks.
• Stream base-class & various subclasses.
• Catalogs include a dynamically-typed tree structure.
• An OutputDev which extracts rearranged & decoded text from a PDF file, much harder than it needs to be!
• Key-value caches used in graphics & cross-reference.
• An OutputDev which strips away degenerate PDF data.
• An OutputDev outputting PostScript files utilizing an extra prolog.

2/3!

alcinnz, 21 days ago

• Parsed parameters for media playback, used by internal links.
• Parsed PageTransitions, called by embedders.
• Parsed Movies & their activation parameters, called by embedders.
• Lookup character names, called by Global Parameters.
• Stream subclasses to help decode JPEG images.
• Log info on link-triggered JS.
• An OutputDev extracting your annotations.
• Utils for embedding images, used by the PDFDoc class itself.
• Decode compact arithmetic instructions, used by JPG decoding.

3/4!!

alcinnz, 21 days ago

• Python script for generating Unicode dataheaders.
• General logic for parsing out files (fonts, images, video, audio) embedded in the PDF)
• Filepath parsing.
• ZLib compression, used by PostScript & the PDF doc itself. With a Stream subclass.
• Parsed FontInfo, used by Text Output & the global params.
• Loading PDFs via LibCURL
• Reading & writing dates.
• Discrete Cosine Transformation streams.
• Hashmaps & arrays.
• "Distinguished name" parsing, used by cryptography.

4/4.5!!

alcinnz, 21 days ago

• Error reporting.
• Gathering font metrics, used by Forms.
• Parsing char maps; used by graphics, global params, & text extraction.
• An Output Dev for computing the bbox.
• OutputDev hooking LibPoppler up to LibCairo Vector Graphics, with box rescaling util.

And I think that pretty much covers everything else in LibPoppler's core library!

4.5/4.5! Fin for today! Tomorrow: LibSplash! Amongst its vendored libs.