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Correct answer gener7

Here are the official limiitations:

"PSD limits pixel dimensions to 30,000 x 30,000 and max size to 2GB.

PSD files are limited to 2 Gig because of the file format design and compatibility with other applications. That really cannot be changed.

That's why the PSB format was created, to allow for much larger files (in pixel dimension and total file size).

300,000 x 300,000 and 4 exabytes, which modern hardware does not touch.

PSB files work up to around 4 Exabytes, and we can't go beyond that without changing the OS file APIs to allow more then 64 bits for the file size and position."

Chris Cox (who was the senior engineer on Ps for 20 years).

1 reply

gener7
Community Expert
gener7Community ExpertCorrect answer
Community Expert
September 13, 2018

Here are the official limiitations:

"PSD limits pixel dimensions to 30,000 x 30,000 and max size to 2GB.

PSD files are limited to 2 Gig because of the file format design and compatibility with other applications. That really cannot be changed.

That's why the PSB format was created, to allow for much larger files (in pixel dimension and total file size).

300,000 x 300,000 and 4 exabytes, which modern hardware does not touch.

PSB files work up to around 4 Exabytes, and we can't go beyond that without changing the OS file APIs to allow more then 64 bits for the file size and position."

Chris Cox (who was the senior engineer on Ps for 20 years).

H
happyrainbowAuthor
Participant
September 13, 2018

Thanks!

M
Minvader
Participant
October 14, 2025

Nobody is a gatekeeper. Adobe designed these formats and if a different application has different limitations, then so be it.


Adobe tools being the "standard" for professional use does make them the gatekeeper of how large my files can be.  Maybe it's time for some professionals to seriously consider the alternatives.  Sure, most people will never need more than 300,000px... but for those of who do, this becomes a serious roadblock.

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