The fields I want to edit are "Author" and "Title".
At first I edited those fields (in Dopus) for 2 PDFs created with Indesign (fields were empty before). Both times, one of the edited fields was empty again when checking the dialog in Dopus after editing. Then I edited those fields again and it stayed in there.
It doesn't appear in the PDF view though, neither in Sumatra PDF nor in Acrobat Pro.
Then, I tried editing a PDF document that was created with FrameMaker and where the Author and Title fields have been filled in using Acrobat Pro before. After editing a field, it saved and displayed correctly in Dopus, but Acrobat and Sumatra still display the value that was there before.
Next, I created an empty pdf document with Indesign and entered text into Author and Title using Dopus. When opening it in Acrobat, the fields were empty. I entered text again using Acrobat.
When clicking OK, Acrobat displayed the error "Dictionary Keys must be direct name objects" and didn't save the changes. (Edit: I tried the same thing again now with a different PDF that was edited by Dopus, and now Acrobat displays "Undeterminated string" as error instead.)
I tried it repeatedly, and after a 3 or 4 tries it didn't display the error message again and saved the changes. (I attached the last file below.)
MetadataTestFile.zip (2.0 KB)