The actual cause of the problem is detailed here from Adobe, and that blog post also includes a script for Acrobat users to recover the data from a form filled in using Preview.app (it turns out Preview puts the data in the form, but doesn't specify how it should 'appear', so Acrobat shows it as blank/invisible). This means you can't edit them anymore (in the new, printed PDF), which can be desirable, but also means they'll show up properly in Adobe. to generate a new, 'flattened' PDF.įlattened simply means that all annotations (including data in the form) become indistinguishable from the actual content of the PDF, as if they were part of it all along. Probably the simplest / safest option is to 'flatten' the PDF before sending it, by printing it to a new PDF.Īfter completing your form in Preview, go to the Print menu ( cmd+P) and use the PDF drop-down in the bottom-left, selecting to Save as PDF. NB this seems to be fixed in the most recent versions of OS X, so workaround perhaps no longer required.

Preview mac os comment boxes empty