• Global community
    • Language:
      • Deutsch
      • English
      • Español
      • Français
      • Português
  • 日本語コミュニティ
    Dedicated community for Japanese speakers
  • 한국 커뮤니티
    Dedicated community for Korean speakers
Exit
2

Acrobat deleting images during optimization

Community Beginner ,
Oct 18, 2018 Oct 18, 2018

Copy link to clipboard

Copied

Hi All,

I am optimizing a PDF with Acrobat .. and it is deleting images on 3 pages .. images I need.

I've tried to insure they are on the top layer .. but they are there in the uncompressed version .. gone in the compressed version.

Any ideas?

Thanks, David

TOPICS
Create PDFs

Views

5.8K

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines

correct answers 1 Correct answer

Oct 19, 2018 Oct 19, 2018

You are probably not going to believe this, but all the images you are missing on the optimized version show up when I view the optimized version on three separate systems. The problem isn't the resultant PDF file. Something else is going on. And FWIW, not only do they show up on Acrobat DC Pro on my Windows system, but also on the Adobe Acrobat Reader for iOS.

Something is wrong with your configuration, possibly a video driver or maybe even Acrobat preferences. If you have the Use 2D graphics ac

...

Votes

Translate

Translate
Oct 18, 2018 Oct 18, 2018

Copy link to clipboard

Copied

It would help tremendously if you provided more information such as Acrobat version, OS, and all the optimization settings you are using. Furthermore without posting a sample file (with before and after versions), it is virtually impossible for any of us to assist you here.

          - Dov

- Dov Isaacs, former Adobe Principal Scientist (April 30, 1990 - May 30, 2021)

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Beginner ,
Oct 18, 2018 Oct 18, 2018

Copy link to clipboard

Copied

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Oct 18, 2018 Oct 18, 2018

Copy link to clipboard

Copied

OK, got the files, thank you.

However, you did not send me the settings you used for optimization.

Regardless, on my system running the latest copy of Acrobat Pro DC with all updates, I see no visual difference between the files. In comparing the files, I don't see any images missing. On exactly what pages do you think images are missing? All the images of the larger file appear in the smaller file. The only significant difference I see between the files is that in the optimized file, images are downsampled to 150 dpi (as opposed to 300 dpi in the original file).

     - Dov

- Dov Isaacs, former Adobe Principal Scientist (April 30, 1990 - May 30, 2021)

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Beginner ,
Oct 19, 2018 Oct 19, 2018

Copy link to clipboard

Copied

Hi Dov,

Images are missing on Pages 4, 5 and 11.

On pages 4 and 5 the Microchip logo is missing.

On page 11 the 3 patent filing images are missing.

I used standard settings for Mobile compression.

Thanks

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Oct 19, 2018 Oct 19, 2018

Copy link to clipboard

Copied

You are probably not going to believe this, but all the images you are missing on the optimized version show up when I view the optimized version on three separate systems. The problem isn't the resultant PDF file. Something else is going on. And FWIW, not only do they show up on Acrobat DC Pro on my Windows system, but also on the Adobe Acrobat Reader for iOS.

Something is wrong with your configuration, possibly a video driver or maybe even Acrobat preferences. If you have the Use 2D graphics acceleration option enabled under Preferences=>Page Display, try disabling it and see if that makes a difference.

          - Dov

- Dov Isaacs, former Adobe Principal Scientist (April 30, 1990 - May 30, 2021)

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Nov 07, 2018 Nov 07, 2018

Copy link to clipboard

Copied

Have you tried my suggestions yet? Would like to confirm what is going on.

Thanks.

          - Dov

- Dov Isaacs, former Adobe Principal Scientist (April 30, 1990 - May 30, 2021)

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
New Here ,
Nov 26, 2020 Nov 26, 2020

Copy link to clipboard

Copied

Hi. I got the same problem. But I confirm that it is something that has to do with graphic card used by some apps, even from Acrobat or mac OS Viewer. If you drop the PDF file where images are not showing in a browser like Chrome, the missing images are suddenly revealed.

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
New Here ,
Feb 09, 2024 Feb 09, 2024

Copy link to clipboard

Copied

I have the same issue as well.

Images from Compressed PDFs show up in Acrobat Reader, but appear missing in the OS X Preview application, OS X v14.2.1.

 

Seems the compressed PDFs work fine in Acrobat products, but images are not supported in compressed PDFs made with Acrobat in other readers, which is a big problem for distributing digitally 

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
Feb 22, 2024 Feb 22, 2024

Copy link to clipboard

Copied

Same here, since this week ! Also, on a Mac.

Used Optimizing before on numerous files – no problem. But now they simply don't appear.

Images do show up in Acrobat and in Chrome, but not in Preview or Safari (probably due to their common engine). De- and re-installed Acrobat, but no improvement.

 

Then I thought: I created the original file with Google Docs. How about a plain vanilla PDF from InDesign ? And this turns out to retain its images after optimization ! So there might a some conflict with Google's compression scheme, not correctly being decoded and encoded again for Mac OS by Acrobat ?

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
Feb 22, 2024 Feb 22, 2024

Copy link to clipboard

Copied

I tested some more, using Save as Smaller File and Save Optimized with an optimisation setting without the options for imagery checked. But the images are still disappearing and not re-appearing in Preview. (Mac OS 12.6.2, Acrobat 23.8.20533.0). 

 

As a temporary work-around, I converted the PDF into a PDFa, and this at least brings the file size down quite a lot and still shows up correctly in Preview.

 

For anyone interested, I enclosed some files to test and tweak.

Note: the "original" PDF was too large to send. So I deleted the majority of pages with Preview. Nevertheless, the larger original and this smaller one misbehave in exactly the same way.

The larger PDF has the following Document Properties, revealing Skia/PDF m123 Google Docs Renderer as the PDF Producer: 

 

Schermafbeelding 2024-02-22 om 14.36.14.png

 

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
Apr 12, 2024 Apr 12, 2024

Copy link to clipboard

Copied

Well, my specific problem has vanished...

Having time to re-visit this problem and the offered insights, I tried to reproduce the erratic workflow, but it seems that it must have been some strange glitch. Images in newly created PDFs show up correctly now in the earlier mentioned misbehaving PDF viewers. I also noticed that the PDF producer version of Google Docs went up two notches, so maybe that killed the bug ?

 

Edit: I also tested to re-optimize the older files, and they still missed the images in certain viewers. So there probably has been a bug at the initial creation of those PDFs...

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
New Here ,
Mar 15, 2024 Mar 15, 2024

Copy link to clipboard

Copied

This problem can be solved by setting the PDF compatibility version to 5.0 or below at the beginning of the save-with-reduced-size process. Saving as PDF/A has a similar effect, as it sets the compatibility version very low.

The Mac built-in PDF engine has various incompatibilities, especially with more recent PDF versions (no idea why Apple can't stay up to date with the standard).

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
New Here ,
Mar 15, 2024 Mar 15, 2024

Copy link to clipboard

Copied

In particular: an optimized PDF with Acrobat 6 (PDF 1.5) compatibility may use the JPXDecode filter, which is how PDF specifies JPEG-2000 compression. Other parts of the Apple system software can handle JPEG-2000, but the support for the format in PDF isn't there. So these images are omitted when the PDF is displayed in Mac Preview.

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
Community Expert ,
Apr 12, 2024 Apr 12, 2024

Copy link to clipboard

Copied

Thanks for the tip ! But the problematic files were both produced and optimized in the super-compatible version 1.4, so this should rule out any higher intelligence in content formats and codecs.

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
New Here ,
Jul 03, 2024 Jul 03, 2024

Copy link to clipboard

Copied

It sure helped me, thanks @justinbb !

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
New Here ,
Sep 06, 2024 Sep 06, 2024

Copy link to clipboard

Copied

LATEST

thanks @justinbb i've had this issue for a while and setting the compatibiity to 5.0 & below opposed to retain existing worked a treat! i'd say faith restored in Adobe & Apple ... however i'd rather say a big thanks to you instead! 

Votes

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines