Add Signature to PDF

Add typed signature to PDF — positioned text.

Use Cases

Typical scenarios for Add Signature to PDF — see if it fits before you start

For remote contracts, drop drawn/image signature; Add Signature to PDF supports drag/scale/rotate with timestamp.

Filling forms, Add Signature to PDF auto-detects fields — fill+sign in one step, no print-scan.

Before delivery, Add Signature to PDF offers hi-res preview with undo/redo.

Upload — Click or drag PDF/images to the dashed zone. Multi-file and large files (<100MB per batch recommended) are read locally only.
Configure & process — Set pages, angle, password or quality, then hit “Calculate / Process”. Add Signature to PDF runs via WebAssembly and pdf-lib in your browser — no server queue.
Preview & download — Check pages, size and thumbnails on the right, then download. Batch jobs download one by one; tweak and re-run if needed.

Page syntax: Use 1,3,5-7 or 1-10,15; empty means all. Out-of-range pages are ignored.
Privacy & size: Everything runs locally — no server upload. For large files, process in batches of 50–100 pages.
Fidelity: Fonts and vectors are preserved where possible. For scanned PDFs, run OCR/searchable PDF first, then convert.

Input

ADD SIGNATURE

Output

PDF

All conversions run locally in the browser; check fidelity in desktop for complex layouts.

Will files be uploaded? Is Add Signature to PDF safe?

No. Add Signature to PDF runs 100% in your browser via File API; no network upload, memory cleared when you close the tab.

Processing failed or download blocked?

Check page ranges, passwords and file integrity. If the browser blocks multiple downloads, allow “automatic downloads” or click links one by one.

How to chain with other sign tools?

Combine workflows: organize pages first, then compress/convert for submission, then protect/sign for delivery.

Upload file, process, download.

All calculations run locally in your browser; nothing is uploaded.