Embed Data into PDF Forms in iOS

By default, PSPDFKit will save entered form field values into a PDF file if the file is writable, or to an external file if the PDF file isn’t writable. This means the values will be retained the next time the document is opened. Read more about how to configure saving in our Annotation Saving Mechanism guide.

Auto-saving is enabled by default in PDFViewController. For details about auto-saving triggers, see our Saving Triggers for Annotations and Bookmarks guide.