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Compress existing images in PDF file

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ross_t View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ross_t Quote  Post ReplyReply Direct Link To This Post Topic: Compress existing images in PDF file
    Posted: 02 Mar 18 at 6:05PM
Hi,

I wish to apply compression to the existing images in PDF file. Is it possible for me to set the Image Quality and Resolution for the existing images in a given PDF file and then save the resulting PDF as a new file without assembling the entire PDF file manually?

Waiting for your reply...

Cheers,

Ross.
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Ingo View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Ingo Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 18 at 7:27PM
Hi Ross,

for already existing images there's no one-click-function in QuickPDF.
You can do similar things with extracting images from pdf-documents:
This... http://www.quickpdf.org/forum/topic376&KW=swb1.html
or that... http://www.debenu.com/kb/extract-images-from-pdf-files-as-the-appropriate-image-type/
Work on them with a third party tool...
and replace the existing images with the new smaller ones:
http://www.debenu.com/docs/pdf_library_reference/ReplaceImage.php

You'll find more here:
http://www.debenu.com/docs/pdf_library_reference/Search.php


Cheers,
Ingo

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mLipok View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote mLipok Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 18 at 1:01PM
Ingo what about :
http://www.debenu.com/docs/pdf_library_reference/CompressImages.php

?

Here you can find description how to test my examples:
http://www.quickpdf.org/forum/forum_posts.asp?TID=2932&PID=12600&title=drawcapturedpagematrix-matrix-howto#12600
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Ingo Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 18 at 2:58PM
Hi :)

i think "... added to the document..." (from the reference) means "added in this moment"
and not "being already inside".
 


Edited by Ingo - 03 Mar 18 at 2:58PM
Cheers,
Ingo

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Post Options Post Options   Thanks (0) Thanks(0)   Quote ross_t Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 18 at 6:18PM
Thanks so much guys for your help. I will try out the "extract image, compress and replace" algorithm. I'm sure it will work good.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mLipok Quote  Post ReplyReply Direct Link To This Post Posted: 04 Mar 18 at 10:02PM
Originally posted by Ingo Ingo wrote:

Hi :)

i think "... added to the document..." (from the reference) means "added in this moment"
and not "being already inside".
 
Oh I see.

Maybe we can combine:

http://www.debenu.com/kb/extract-images-from-pdf-files-as-the-appropriate-image-type/
http://www.debenu.com/docs/pdf_library_reference/ReplaceImage.php
http://www.debenu.com/docs/pdf_library_reference/CompressImages.php

I mean extract, + replace with the same data but + CompressImages

I hope CompressImages toogether with ReplaceImage should made the trick..... but I never tested this before.



Edited by mLipok - 04 Mar 18 at 10:03PM
Here you can find description how to test my examples:
http://www.quickpdf.org/forum/forum_posts.asp?TID=2932&PID=12600&title=drawcapturedpagematrix-matrix-howto#12600
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mLipok Quote  Post ReplyReply Direct Link To This Post Posted: 04 Mar 18 at 10:05PM
I also staying in hope that we can use:
OriginalImageIDint32 = NewImageIDint32
In such case we should be able to do this without any file/disc operation.

Here you can find description how to test my examples:
http://www.quickpdf.org/forum/forum_posts.asp?TID=2932&PID=12600&title=drawcapturedpagematrix-matrix-howto#12600
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mLipok Quote  Post ReplyReply Direct Link To This Post Posted: 04 Mar 18 at 11:02PM
more discussion here:
http://www.quickpdf.org/forum/reduce-pdf-file-size_topic2846.html
http://www.quickpdf.org/forum/exported-images-original-file-size_topic2151.html
http://www.quickpdf.org/forum/to-reduce-the-pdf-file-size_topic1404.html
http://www.quickpdf.org/forum/reducing-pdf-file-size_topic792.html
http://www.planetpdf.com/enterprise/article.asp?ContentID=reducing_pdf_file_size_
http://www.debenu.com/kb/can-i-compress-my-pdf/
http://www.quickpdflibrary.com/faq/reduce-file-size.php
http://www.quickpdflibrary.com/faq/compressing-pdf-files.php
http://www.quickpdflibrary.com/faq/resampling-a-pdf-to-reduce-file-size.php

Here you can find description how to test my examples:
http://www.quickpdf.org/forum/forum_posts.asp?TID=2932&PID=12600&title=drawcapturedpagematrix-matrix-howto#12600
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mLipok Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 18 at 2:16PM
Any body know if QuickPDF is able to compress PDF Files with MRC ?
https://en.wikipedia.org/wiki/Mixed_raster_content


Here you can find description how to test my examples:
http://www.quickpdf.org/forum/forum_posts.asp?TID=2932&PID=12600&title=drawcapturedpagematrix-matrix-howto#12600
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ingo Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 18 at 10:28AM
QP aren't able to use MRC.
Relevant images for mrc-compression need a special internal data structure.
These special internal data structure isn't taken into account regarding the image handling in the QP-functionalities.

Cheers,
Ingo

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Post Options Post Options   Thanks (0) Thanks(0)   Quote mLipok Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 18 at 7:57AM
what a pity ... Ermm
Here you can find description how to test my examples:
http://www.quickpdf.org/forum/forum_posts.asp?TID=2932&PID=12600&title=drawcapturedpagematrix-matrix-howto#12600
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mLipok Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 18 at 8:04AM
Here too... I just posted Feature Request
Here you can find description how to test my examples:
http://www.quickpdf.org/forum/forum_posts.asp?TID=2932&PID=12600&title=drawcapturedpagematrix-matrix-howto#12600
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