Switching between PDF editors

Should I be able to work on a pdf in PDF Expert on my ipad, and then continue to work on it on my Mac with PDF Pen, or on my work PC in Adobe Pro? I couldn’t get this to work when switching between PDF Expert and PDF Pen (the version that comes with SetApp)

I have the same kit as you – PDFExpert on iPad and PDF Pen (v10.x from SetApp) on macOS. I just now added a highlight and a sticky note with iOS PDFExpert to a PDF stored in iCloud, closed the doc on PDFExpert – to commit the changes – then opened the same document in PDF Pen on macOS. The highlight and sticky note were there and editable.

cool, maybe it was a fluke, couldn’t get it to select the text