Compress existing images in PDF file
Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: General Discussion
Forum Description: Discussion board for Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=3549
Printed Date: 24 Apr 24 at 1:16PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com
Topic: Compress existing images in PDF file
Posted By: ross_t
Subject: Compress existing images in PDF file
Date Posted: 02 Mar 18 at 6:05PM
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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. |
Replies:
Posted By: Ingo
Date Posted: 02 Mar 18 at 7:27PM
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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 |
Posted By: mLipok
Date Posted: 03 Mar 18 at 1:01PM
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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 |
Posted By: Ingo
Date Posted: 03 Mar 18 at 2:58PM
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Hi :) i think "... added to the document..." (from the reference) means "added in this moment" and not "being already inside". ------------- Cheers, Ingo |
Posted By: ross_t
Date Posted: 03 Mar 18 at 6:18PM
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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. |
Posted By: mLipok
Date Posted: 04 Mar 18 at 10:02PM
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. ------------- 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 |
Ingo wrote:Posted By: mLipok
Date Posted: 04 Mar 18 at 10:05PM
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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 |
Posted By: mLipok
Date Posted: 04 Mar 18 at 11:02PM
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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 |
Posted By: mLipok
Date Posted: 02 May 18 at 2:16PM
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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 |
Posted By: Ingo
Date Posted: 03 May 18 at 10:28AM
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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 |
Posted By: mLipok
Date Posted: 04 May 18 at 7:57AM
what a pity ...  ------------- 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 |
Posted By: mLipok
Date Posted: 04 May 18 at 8:04AM
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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 |