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Participant
April 23, 2018
Answered

PDF from URL, bad Image Quality

  • April 23, 2018
  • 2 replies
  • 2439 views

Hi, when i creating a PDF from URL in Acrobat Pro DC, the Image Quality is poor in the resulting pdf, compared to the orignal jpg, png ...

How can i get the original image quality, like visible in the Browser ?

thanks in advance

This topic has been closed for replies.
Correct answer Dov Isaacs

Actually, the problem stems from not the image conversions pointed to in the previous responses, but rather, the settings in the Standard joboptions.

Both HTML and Outlook e-mail message PDFMaker conversions implicitly use the Standard joboptions for conversion settings. Regrettably, there is no ability to point to some other settings such as High Quality Print joboptions.

The best workaround (and I have been using this successfully for a number of years) is to modify the Standard joboptions to be much closer to those of High Quality Print with no downsampling of images unless they are > 450 dpi, use of Automatic (JPEG) compression with Maximum quality, subset embedding of all fonts, and no color space conversions. The got'cha on this solution is that you need to change ownership and protections of the Standard.joboptions file such that you can change it and resave it. Also, updates of Acrobat may overwrite your updated Standards. joboptions file and as such, it is important to save a copy to restore after Acrobat updates.

          - Dov

2 replies

Dov Isaacs
Dov IsaacsCorrect answer
Legend
April 23, 2018

Actually, the problem stems from not the image conversions pointed to in the previous responses, but rather, the settings in the Standard joboptions.

Both HTML and Outlook e-mail message PDFMaker conversions implicitly use the Standard joboptions for conversion settings. Regrettably, there is no ability to point to some other settings such as High Quality Print joboptions.

The best workaround (and I have been using this successfully for a number of years) is to modify the Standard joboptions to be much closer to those of High Quality Print with no downsampling of images unless they are > 450 dpi, use of Automatic (JPEG) compression with Maximum quality, subset embedding of all fonts, and no color space conversions. The got'cha on this solution is that you need to change ownership and protections of the Standard.joboptions file such that you can change it and resave it. Also, updates of Acrobat may overwrite your updated Standards. joboptions file and as such, it is important to save a copy to restore after Acrobat updates.

          - Dov

- Dov Isaacs, former Adobe Principal Scientist (April 30, 1990 - May 30, 2021)
Inspiring
April 23, 2018

Hello Ernest,

Acrobat will used convertion settings defined by some main preferences and local settings:

If you enter the url as showned below:

Check the settings and see what he's doing.

Furthermore continue to check next preferences if something is going wrong. See below:

Check both: HTML settings en text settings.

If the images are converted; check the preferences of Acrobat and controle what he's doing with your images. It seems to be that you will find the solution in the way that Acrobat handling images when creating PDF's files. Follow and check your application preferences. See below where to find them. Or uncheck to convert images when creating the PDF! And see the result.

If there is a convertion follow the comments below.

In the main preferences you can find the categorie Convert to PDF > check settings for both: JPEG and PNG.

Globally say; if the compression is low quality, then the result will also low. That is what's happening.

Good luck.

Patrick

PS: if this was helpfull mention it please.

Ernesto57Author
Participant
April 23, 2018

Hi thepatje,

thank you for your answer, i checked everything you mentioned before and now again.

but unfortionally

the Compression Settings  for monochrome, grayscale and others are disabled and says: "not applicable"

regards Armin