#1 Re: PDF Engine » Deflate compression of PDF » 2011-07-11 21:49:05

It appears that the specifications for FAX ccit 4 are here http://www.itu.int/rec/T-REC-T.6-198811-I/en but I am not sure how they are implemented or stored in a PDF. If only we all had more time to do the thing we want. We are all time poor and wealthy in trivia that takes out time smile

#2 Re: PDF Engine » Deflate compression of PDF » 2011-07-07 10:55:37

From what I understand  CCITT 4 is a very good option for black and white images and produces smaller files, but I have no idea as to how hard that is to implement.

#3 Re: PDF Engine » Deflate compression of PDF » 2011-07-05 10:49:17

I tried out the level 9 compression and it worked great and created a file about 10% smaller. I did experiment with jpeg but it was not as good with black and white 1 bit bitmaps and produced larger files. I think for color images, you are certainly right suggesting jpeg as the best option.

Once again thank you for you great effort in making this great tool and your quick help.

#4 Re: PDF Engine » Deflate compression of PDF » 2011-07-04 07:38:14

Thank you for that. I am just trying to squeeze the pdf down as much as I can as we have terrible internet speeds at work and the pdf's can be large.

thanks again for your great work smile

#5 PDF Engine » Deflate compression of PDF » 2011-07-03 20:18:09

codetracker
Replies: 12

Just wondering if you can set the level of deflate compression (zlib) in a PDF ie level 1 - 9 and if so how you can do that in code?

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