Change Page Size

[Richard24329991cz36]

I've done the Edit, Crop, select Custom page size of 6 x 9 inches but repeatedly get the "Page size cannot be reduced" message. Any help is much appreciated--Rich

[try67 · Accepted solution]

Use the Preflight tool to scale pages.

[AkanchhaS]

@Richard24329991cz36 

++adding on to the expert's suggestion

Here's a related help article: https://helpx.adobe.com/acrobat/kb/Change-PDF-page-size-in-MAC.html 

You can also refer to the similar discussion here for another workaround: https://community.adobe.com/t5/acrobat-discussions/unify-page-dimensions-within-a-pdf/td-p/14015824 

Let us know if this works.

Thanks,

Akanchha