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Published 20 hours ago • verified publisher icon JayXon

PDF format support

Open JayXon opened this issue 8 years ago • 7 comments

Things to do:

  • [ ] Format parsing
  • [ ] Optimize FlateDecode
  • [ ] Optimize DCTDecode
  • [ ] Remove unused object
  • [ ] Remove comments
  • [ ] Remove unnecessary spaces
  • [ ] Remove Metadata

JayXon avatar Aug 29 '15 05:08 JayXon

I would also vote for that

StephanBusch avatar Nov 06 '15 11:11 StephanBusch

Very nice feature. Would like that too.

javiergutierrezchamorro avatar Dec 27 '15 08:12 javiergutierrezchamorro

Reduce PDF size is very useful.

ywwill avatar Jan 06 '16 05:01 ywwill

It will be a very nice feature.. please take a look at https://github.com/pts/pdfsizeopt

maadjordan avatar Jun 22 '16 08:06 maadjordan

adding the following would be nice: 1- convert deflate stream to jpeg2000 lossless mode if result is smaller. 2- cross reference duplicate object of streams. 3- convert ccitt g4 streams to jbig2 through jbig2enc (if present) at https://github.com/agl/jbig2enc 4- remove default 14 fonts https://en.wikipedia.org/wiki/Portable_Document_Format#Standard_Type_1_Fonts_.28Standard_14_Fonts.29 5- optimize embedded attachments or media .. plus other tricks..

maadjordan avatar Feb 07 '17 13:02 maadjordan

up

blap avatar Nov 26 '17 14:11 blap

That would be great!! I need to compress loads of PDFs, I tried more than 10 online solutions and 4 offline, most of them tragic, best is currently http://pdfcompressor.com, very good compression rates but zero DPS rescale and unnoticeable jpeg recompress. Only one solution gave better compression ratios but at the cost of brutal image recompression. However, its limit is 20 files per try and its an online solutions, which is a drawback itself. If you manage to at least even it out, Leanify would became my swiss knife of compression tools. And I would buy you a few beers :)

vitexikora avatar May 11 '18 16:05 vitexikora