I'm working with a PDF in Adobe Acrobat XI Pro, and trying to import a relatively high quality JPEG. Despite disabling any compression-related options that I can see, the edges of the imported image are always low quality.


The PDF was created from a webpage by selecting File, Print in Firefox, then selecting the Adobe PDF driver in the dialogue:

enter image description here

I then opened the Properties dialogue and set the following settings:

enter image description here

I also modified the High Quality Print preset to turn both Compression and Downsampling off for images.

The Problem

Despite all of the above setup to ensure imported images don't have their quality reduced, the edges of the imported images are badly artifacted, and this is amplified when the image is reduced to a smaller size.

The JPEG in question is a 500KB 450x165 logo that was originally an Illustrator EPS vector file, which I opened in Photoshop to resize and save to a raster JPEG.

This is the original image as previewed by Windows Photo Viewer:

enter image description here

This is the image immediately after being imported into the PDF with Acrobat (notice especially the bottom edges):

enter image description here

This is the image when resized to the size I need it to be in the PDF:

enter image description here

How can I import the image into the PDF without introducing any artifacts?

The nature of this document requires that it both render and print as professionally as possible, so this is not an ideal situation at all, and I would really appreciate some help with getting it to look good. Thank you.

  • The logo might have been an EPS, but when it’s imported into Acrobat in this example it’s being treated as a JPEG. How was this image pasted into the document? Copy and paste? Or something else. – JakeGould Nov 12 '17 at 0:54
  • I mentioned this in my question. There's no way to import an EPS directly into Acrobat, and I don't have access to the new version of Illustrator that the EPS file was created with, so I had to use Photoshop to open it (double-clicking the canvas and browsing to it), then using Image Size to resize it and saved it as a JPEG. I then used Acrobat's Add Image to import the JPEG into my PDF file. – Hashim Nov 12 '17 at 1:00
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    If that is the case—meaning you converted it into a JPEG for placement—then what I would recommend is to add a margin on all sides of the image. If the image bumps on edges like that, rescaling will create those kind of distortions. But if you have some kind of margin around the image when you convert to a JPEG and then copy and paste it, that should eliminate that issue. – JakeGould Nov 12 '17 at 1:14
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    Image quality could be better if in Photoshop you convert the logo to advanced object before resizing it and if you save it as TIFF instead of JPEG – spike_66 Nov 12 '17 at 6:53
  • @spike_66 Do you mean convert it to smart object? If so, how that would be done? I can't find any information on it. – Hashim Nov 12 '17 at 18:38

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