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Participant
April 19, 2018
Question

Converting PNG to PDF is changing dimensions.

  • April 19, 2018
  • 4 replies
  • 5481 views

I'm having difficulty simply converting a PNG file to PDF and keeping the original dimensions. The original PNG file is 4980 × 2100 pixels, and whenever I export as PDF, it's suddenly 1195 × 504 and I cannot figure out why. Any ideas?

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4 replies

Legend
April 19, 2018

What is the size in inches shown by Photoshop (Image > Image SIze)? Does it match? There is one situation where it won't but let's start there.

Legend
April 19, 2018

Are you checking the size in inches? You can do this by moving the mouse to the bottom left of the page: the page size should be shown below. The size in inches of a converted PNG will depend on its resolution (ppi value).

Participant
April 19, 2018

The inches are different, now that I'm seeing this. But, that confuses me even further, considering the photoshop file is significantly smaller. Not sure how 16 inches suddenly jumps to 69.

Legend
April 19, 2018

Smaller than what in the merged PDF? What are you comparing? Always check the zoom, too, as it is constantly changing as you move around many PDF files.

Participant
April 19, 2018

Smaller than the other pages in the merged PDF, which all remained the same dimensions as their original files. I guess I'm just really confused as to why this is suddenly different. I makes it appear smaller too, which makes it look unprofessional.

Legend
April 19, 2018

PDF sizes are not measured in pixels, so this is entirely expected and variable. Perhaps you are assuming - as many do - that "100% zoom" means the same thing in each app: it does not. PNG and PDF files have a size in inches (which are not actual inches on screen) and this should be preserved.

Participant
April 19, 2018

Thanks for the response. I wonder though, why this page is still smaller in a merged PDF, when the inches are still the same? The only difference I see is the change in dimensions.