Acrobat DC, Pro DC, or an older version. · 4. Select Flatten/Flattened (PDF) (PDF Format) >> Flattened/Print(PDF) (PDF Format) >> Flatten/Print(PDF) (PDF Format.) 2. Click the print” button, and the PDF file will be flattened. 3. Save the PDF as a .PDF file and print it, and it will look fine. Posted by John OK at 9:44 AM 3 comments: Hi all, A lot of folks have been asking how to flatten a PDF using Acrobat — and they're all in the same boat, so let's make the process a little more clear. 1. Make a backup of your PDF file · 2. Open the PDF to be flattened in Acrobat DC, Pro DC, or an older version. · 3. Use the ‥File‥ → ‣Print‥ menu to summon the ‥Print‥ dialog. · 4. Change How to Flatten PDF Forms by using the Print dialog by either selecting Flatten Forms or Flatten PDF Forms, then choosing Save as PDF. The Flattened Preview window opens. · 5. Adjust the Raster/Vector Balance to your liking. 5. Print the page and save it to be converted to a .PDF file. A couple of notes: Print to the right side of the page, or to the center if you're printing on a left-to-right printer. Don't print over large areas to make conversion to .PDF more difficult (this will create a lot of blank PDF pages). 3. Convert to .PDF (PDF Format) >> Convert to PDF. If the Flattened Preview dialog box opens, leave it open. A full preview of the converted .PDF file. Click the ‐Print‥ button, and the .PDF file will be flattened. (It took me about 30s to complete a 2 MB PDF). If you are using PDF.com, simply download the PDF file. A full preview of the converted .PDF file. Note that the conversion took about 15 minutes, which is pretty quick. Click the ‐Print‥ button, and the .PDF file will be flattened. If you are using PDF.com, simply download the PDF file. (It took me about 25 minutes to convert an 4 MB PDF).