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PNG pixel count limit?


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I tried to export a very large Image (40.000px x 12.000px) als .png and Photo reduced the size to 32767px x 10609px (without warning). Is there a limit to a maximum pixel count in any way? Maybe this is related to the issue I'm having exporting these images as .pdf with transparency. See also:

These strange alpha channel issues don't occur in images the width below 32.000px.

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  • Staff

Hey maxen,

There does appear to be a limit in place.

I'm seeing the exact same results as you. I tried researching it on the net but I'm seeing varied replies. I'll look into it some more.

Edit - the max size I'm getting from a Photoshop export to PNG is 16,000 x 6,000 px

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The current retail version (1.8.2.620) gives the same warning, as do prior versions if I remember correctly.

image.png.b34c7ecd370a1a196b969946710cc9eb.png

-- Walt
Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases
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Strange, I don't get the warning here. But I jaust remembered asking this same question almost two years ago and got the same answer. Sorry for that...
Nevertheless there are some strange behaviours when trying to export a mix of masked pixel layers and vector layers to pdf.

For now I export the large 40.000px version without transparency und reduced the transparent version to 32.000px. Our customer says it's OK so we got away with it. :D

 

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  • 4 months later...
  • Staff

We have made fixes/improvements to this area (PNG not displaying size warning if export dialogue is closed with different preset) of the program in the latest release.

The fixes and how to update are described in these forum posts.

We would appreciate you checking that this issue has now been resolved for you.

Patrick Connor
Serif Europe Ltd

"There is nothing noble in being superior to your fellow man. True nobility lies in being superior to your previous self."  W. L. Sheldon

 

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