Sign PDF
「Sign PDF」はテキストと文書に使えるブラウザツールです。入力内容と結果は通常この端末内で処理され、登録は必要ありません。
LOCAL VISIBLE PDF SIGNATURE
Add one visible signature to a local PDF
Draw a signature, type a name, or use a signature image. The downloaded copy is a real PDF created in your browser.
使い方
使い方
- Choose one local PDF up to 25 MB and 100 pages.
- Select a page, a placement corner, and a handwritten, typed, or image signature.
- Create the visible signature and download the new PDF copy.
Visible mark only
This tool adds a visible handwritten drawing, typed name, or signature image to one selected page. It creates a new application/pdf file locally. It does not create a certificate-based digital signature, verify identity, prove consent, prevent later changes, or establish legal validity.
Private, bounded local processing
The selected PDF and signature stay in the current browser. Nothing is uploaded, stored, or sent to a server. PDFs are limited to 25 MB and 100 pages. Signature images are limited to 4 MB and 12 megapixels so the browser can keep processing bounded.
Protected and complex PDFs are refused
Password-protected or encrypted PDFs, PDFs that already contain a signature, and PDFs with XFA forms are refused. The tool does not bypass passwords, invalidate a prior signature, flatten complex forms, or attempt to repair a damaged PDF.
よくある質問
あわせて知りたいこと
Is this a digital signature?
No. It places a visible signature mark only. It does not issue or use certificates, verify identity, make a tamper-evident record, or determine whether the result is legally binding.
Is my PDF uploaded?
No. The PDF, drawing, typed name, and image are processed only in your browser and are not sent to a server.
Why was my PDF refused?
The file may be encrypted, password-protected, already signed, an XFA form, damaged, unsupported, larger than 25 MB, or longer than 100 pages. Remove protection only if you are authorized to do so, then use an appropriate PDF workflow.
Can I add more than one signature?
This first version adds one visible signature to one selected page each time. Download the result and repeat only when the document workflow permits it.