Turn any PDF into a fillable form
Upload a static PDF, detect form fields with AI or place them by hand, collect signatures, and export a polished fillable PDF — all in your browser.
Everything you need, nothing uploaded
Your documents never leave your device. There is no backend and no account.
AI field detection
Bring your own Anthropic API key and let Claude find text fields, checkboxes, radios, dates, and signature zones automatically — or import fields already embedded in the PDF.
Visual editor
Drag, resize, and fine-tune every field on a live page preview, with keyboard shortcuts, undo/redo, and per-field properties.
Signatures
Draw, type, or upload signatures and stamp them onto signature zones before export.
Fillable or flattened export
Download an interactive AcroForm PDF that stays editable, or a flattened copy with values baked in.
Reusable templates
Save a field layout once and reapply it to similar forms — exportable as JSON for sharing.
Private by design
No servers, no tracking, no uploads. Files and settings live only in your browser's memory and local storage.
From flat PDF to fillable in five steps
A guided flow takes you from upload to download in minutes.
Upload
Drop a PDF — up to 50 MB.
Detect
AI, embedded-field import, or offline scan.
Edit
Place and tune every field visually.
Sign
Apply signatures to signature zones.
Export
Download fillable or flattened PDF.
Your files stay yours. PDForge runs entirely in your browser — PDFs are rendered and edited locally. The only network call ever made is to Anthropic's API, and only when you explicitly run AI detection with your own key. Read the full Privacy Policy.
Ready to forge?
Free, no account, nothing to install.
Launch PDForge