Detect
Find form fields, blank lines, date fields, checkboxes, and signature areas.
Native macOS PDF fill and sign
pdff
A fast Mac PDF editor for the annoying forms that should take seconds: fill detected fields, fix missed boxes, add signatures, and export a clean PDF.
Built for real forms
pdff keeps the original PDF layout intact and writes your answers as a clean overlay, so exports do not reflow the document.
Correct
Change a mistaken field type, resize it, or add a missing text box or checkbox.
Sign
Draw or type a reusable signature, then move and resize it directly on the page.
Export
Save as a new PDF or overwrite the original after confirmation.
Download the latest build
Unsigned early build. macOS may ask you to confirm before opening it.