Features · iPhone, iPad and Mac
Everything you do with a PDF, without breaking it.
Start with the ten things people come to Keepsign for. Each page explains what the feature does, how it works and where its limits are.
01 Sign and keep
SignSign without breakingFill and sign a PDF that’s already signed, and keep every signature valid.SaveThe save receiptEvery save reopened and checked, with a receipt you can export and send.SignDigital ID signaturesCertificate (PAdES) signatures with your .p12 or .pfx on every device, and a real verifier.FillFill PDF formsReal fields with the right keyboard, working calculations, flat PDFs and your details on tap.
02 Edit and convert
EditEdit text like WordType into a paragraph with the PDF’s own font; text reflows, lists renumber, nothing else moves.ConvertPDF to Word and ExcelWord, Excel and PowerPoint made on your device. Measured on 474 real PDFs.ScanScan with textPaper to PDF with searchable text, recognised on your device, free.ScanErase marks from scansBrush away pen marks, stains, holes and shadows; the printed text underneath stays.
03 Review
04 The full list
About 95 tools in ten groups.
Free tools never close. Pro tools can each be tried; any three Pro jobs are free before you decide.
| Group | Free | Pro |
|---|---|---|
| Sign | Draw, type or photo signature; initials; dates; Digital ID; verify signatures; save receipt; 1 saved signature + 1 initials, synced with iCloud if you want | As many saved signatures as you need, each with its name; signing many files at once |
| Annotate | Highlight, underline, strikethrough, shapes, arrows, callouts, notes, text boxes, images, pen, marker, eraser, lasso, Apple Pencil; redact by hand | Measure distance and area with a scale |
| Pages | Organize, rotate, insert, blank page, duplicate, extract, merge, photos to PDF, scan pages | Batch jobs on many files |
| Convert | Export as image or text; print; grey copy; PDF from photos, documents and web pages | Word, Excel, PowerPoint; table to spreadsheet; PDF/A; archive package |
| Protect | Password and permissions; remove personal info; versions; inspect; read-only mode | Ready to send (compress to a size); find and redact sensitive data; optimize; send profiles |
| Compare | Compare two versions; compare report | |
| Read | Read aloud (also locked), reflow, translate, present, copy an area, sepia and night | |
| Forms | Fill, Fill & Sign on flat PDFs, My Info, autofill, initials on every page, clear, flatten, XFA, sign in person | Prepare form; form data import/export; templates |
| Document | Attachments, bookmarks, links, properties, repair | Page numbers, header and footer, watermark, Bates; fix scans; ID card |
| Review | Review before sending | What changed?; Ask, Summary, Dates & deadlines, Invoice to spreadsheet, Contract versions, Privacy check, Explain simply, Study questions, Writing help; accessibility check; Erase marks; edit text; find and replace; edit images; make searchable |
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