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Glemlyn
Participant
February 7, 2023
Question

PNG Dimensions change when converting to PDF

  • February 7, 2023
  • 1 reply
  • 3425 views

For some years now I have created PDFs from multiple, same size PNG files produced in Photoshop.  The dimensions of the PDF have always matched the PNG dimensions.

 

e.g. PNG = 1200 X 1200 @ 300 dpi produces a PDF that is 1200 x 1200

 

Yesterday - following my usual workflow - a PDF made from only 1200 x 1200 PNG files is coming out at 288 x 288.

 

Trying to troubleshoot, I opened an older "correct size" PDF I had made (1400 x 1400) and inserted a 1400 x 1400 PNG into it and this one image was reduced drastically in size within the PDF!

 

I believe I have double-checked all the import preferences and even uninstalled and reinstalled Acrobat but I still get the same result.  I am definitely selecting the large file option on import:

 

Any ideas why this is happening?

 

Thanks in advance!

This topic has been closed for replies.

1 reply

T
Test Screen Name
Legend
February 7, 2023

PDF sizes are measured in inches/mm, not in pixels (though some apps incorrectly report them that way). So, when you say "PDF that is 1200 x 1200", what do you actually mean? A screen shot showing how you measure it would be interesting. 

T
Test Screen Name
Legend
February 7, 2023

Also, what version of Photoshop (not "latest") and how exactly do you save the PNG? Photoshop often drops ppi info when saving. Finally... did you know you can save PDF directly from Photoshop?

G
GlemlynAuthor
Participant
February 7, 2023

Sorry - only just saw these additional questions.

Photoshop is version 24.0.0.

In the PsD I have a number of grouped layers.  I highlight them all in the layers panel, right click to get 'Export as...', select PNG with transparency ticked (and see they are all 1200 X 1200) then export to folder...

quote

Finally... did you know you can save PDF directly from Photoshop?


By @Test Screen Name

No, I can only see how to save all the PNGs as individual PDF files which is not what I want.

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