SignForge handles the whole sign-and-return loop offline. Its signature studio lets you draw on a pad, type your name in a script face, or import a photo of a real signature and strip the background automatically — then keeps them in a reusable library. Place a signature, initials, the date, free text, checkmarks, crosses or dots anywhere on the page and adjust them freely. It also fills genuine AcroForm fields, with tab order and a required-field check so nothing gets missed. For documents that need more than a picture of a signature, it applies real PKCS#7/CMS cryptographic signatures using a self-signed certificate it can generate for you or a .pfx you already have, and includes a verification panel that reports the signer, what the signature covers and whether the bytes are intact.
What it does
Signature studio: draw on a pad, type in a script font, or import an image with automatic background removal and trimming
Reusable signature and initials library so you sign the same way every time
Place signature, initials, date, free text, checkmark, cross and dot marks anywhere, with move, resize and restyle
Fill existing AcroForm fields — text, checkbox, radio, dropdown and listbox — with tab order and required-field checking
Export a flattened signed copy, or a copy that stays editable for the next signer
Real PKCS#7/CMS digital signatures with self-signed certificate generation or PKCS#12 (.pfx) import
Built-in verification panel showing signer, coverage and byte-range integrity
Certify and lock a document so later changes invalidate the signature
Windows installer (.exe) — installs in a couple of clicks, no extra runtimes needed
Platform:
Windows 10/11 (64-bit)
Version:
1.0.0
Download size:
81 MB
Requires:
Runs fully offline. No account, no subscription, no internet connection needed. Not code-signed yet, so SmartScreen may warn on first run - choose More info, then Run anyway.
Licence:
Free forever for one saved signature, up to 8 placed fields per document, and flattened export. A licence key unlocks the multi-signature library, background removal, AcroForm filling, cryptographic signatures, .pfx import, certify and lock, the verification panel, batch signing and unlimited fields.
