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PNG images not displaying properly when generating a PDF in FrameMaker 2019

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I recently upgraded from FrameMaker 2017 to the TCS suite (FrameMaker 2019). I have a couple of documents that were created using older versions of FrameMaker and that contain png images. These images have always displayed just fine when generating the PDF output. Now that I am using FrameMaker 2019, some of the png images appear completely black (they have a transparent background) in the generated PDF. The images look fine when I'm in FrameMaker itself. This does not occur with all of my png images. I can't figure out what is different between the affected files and the files that are generated correctly.

Has anybody else seen this issue or have any ideas how to fix it?

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defaultcbj1p6qywajq

Inspiring

I am having a similar issue but with PDFs inserted as images. When I publish my FM book using Save as PDF from the File menu, I have images that do not display in the output PDF file. If I publish the individual section, then the PDF images display in the individual sections.

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Ksenia Maschenko

Participating Frequently

Hi, my version of FM is 15.0.4.751. All transparent PNG images have a black background if I generate a Responsive HTML-5 output. They look fine when I generate a PDF, but when I generate HTML documentation they look like this:

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Winfried Reng

Community Expert

Hi AntonTyupin,

When you convert to HTML5, what's your graphics format? Default is JPG.

In the folder with the assets there are the converted graphics files. How do these look like, when you open them with your graphics editor or viewer?

Best regards

Winfried

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Ksenia Maschenko

Participating Frequently

Hi Winfried, as I said above, my graphics format is PNG. I need my icons to be transparent because the text background is not always white (as in the snapshot I have attached in my message above). So after I convert to HTML5 all the images in the assets folder have a black backgound instead of transparent. If I open it with a graphics viewer it looks like an image with a black background and there is a white frame around it which is probably the FM anchored frame:

And this is the original image:

And this is how it looks like in the FM project:

And then in HTML5 all the backgounds are suddenly black 😞

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saurabhatadobe

Adobe Employee

If you have any such images, please email at sauagraw@adobe.com.

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bobc27529582

Inspiring

I have this problem too. All the graphics in our manuals use a drop-shadow which is created in Photoshop. The shadow fades into a transparent background however in FM 2019 the background is just black so there is an ugly black background around the graphics.

It is easy to reproduce so I'm quite surprised that few people have complained - maybe not many people use transparent PNGs.

Below is a simple test I made with a red circle on a transparent background.

This is what it looks like in the FM 2019 UI:

This is the resultant PDF (in any viewer on any platform).

This was created using the "use distiller" option as I can't use the new built-in PDF engine as it converts all colours to CMYK (another bug I've logged).

It appears that FM is simply ignoring or incorrectly multiplying the alpha channel from the PNG file.

Please can this be fixed ASAP.

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bobc27529582

Inspiring

I repeated the test using the new built-in PDF engine and it renders the transparency correctly, so this appears to be a bug when using the Acrobat Distiller option. Unfortunately I cannot use the built-in PDF engine as it converts all internally generated colours to CMYK, regardless of their originally defined colour space (see https://forums.adobe.com/thread/2527748)

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pulkitn

Adobe Employee

norasmart

Where have you tried opening pdf, Acrobat Reader or Browser?

Browser doesn't render some kind of image properly, try opening it on Acrobat Reader.

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