How can I save a big file as a PDF in Photoshop?

[Daniel Ulysses]

Hola

I have a big file (a banner 12 feet X 4 feet) and I cannot save it as a PDF in Photoshop.
why is that?
The file was at 300 ppi and I make it as a 210 ppi and still I cannot save it as PDF
what is going on?
I have a Mac, and I'm a monthly subscriber to Adobe suite

[Myra Ferguson]

Here's a similar thread that has some solutions you can try:

• https://community.adobe.com/t5/photoshop-ecosystem-discussions/large-psb-file-cannot-be-saved-as-pdf...

[Daniel Ulysses]

Thank you, I did try everything but nothing worked.
Had to make it a smaller resolution, all good!
Thanks again

[Stephen_A_Marsh]

Thank you, I did try everything but nothing worked.
Had to make it a smaller resolution, all good!
Thanks again

By @Daniel Ulysses

Resolution abstracts the issue, what was the size in pixels on the longest edge?

[Stephen_A_Marsh]

Make the longest edge =/< 30,000px and then see if Photoshop PDF is available.

[Daniel Ulysses]

Thank you for your time !!!