Print Adobe PDF with wrong characters

[Jay_11]

When I open one PDF in Adobe Acrobat Pro DC (32-bit), and I print it as "Adobe PDF" to make every pictures or PDF the same width and height. I mistakenly clicked "Advanced" setting and don't know what I have changed. The output PDF in some pages always has wrong characters as shown below. I tried everything to change the setting back but it doesn't work. Does anyone know the reason.

[JR Boulay]

"I print it as "Adobe PDF" to make every pictures or PDF the same width and height."

You should use the Preflight tools instead of refrying.

[Jay_11]

Thank you so much for your response. I have never used that function. Just want to know how to get it back to the original setting or is there any way to reset every setting of Adobe Acrobat Pro?