使い方
Open an unencrypted PDF. Optionally load a PNG or JPEG signature. Add text and/or signature overlays with page and position, Build PDF, then Download. Positions in the form are measured in points from the top-left of the page; clicking the preview fills those fields.
例
Click the page preview to fill X/Y. Queue several overlays, then Build PDF once.
入力
notes.pdf, text “Approved”, signature.png on page 1出力
notes-written.pdf with the text and signature stamped at the positions you chose仕組み
PDF-lib draws Helvetica text and embeds the signature image on copies of the original pages. Preview rendering uses PDF.js in the browser only. WebP and GIF signatures are refused so transparency handling stays predictable for PNG.
よくあるエラー
- The PDF is encrypted Unlock it first if you have the password.
- A WebP signature was rejected Convert it to PNG (with transparency if you need it) or JPEG first.
- Text with accented letters looked wrong Helvetica WinAnsi cannot draw every Unicode character. Stick to Latin text or flatten a text image instead.
制限
This is an overlay stamp tool, not a full word processor. Existing PDF text is not editable as a rich document. Encrypted files, files over 15 MB, and documents over 200 pages are refused. At most 40 overlays per build.
プライバシー
The file stays in your browser. PepsTools does not upload it, store it, or send it to another service. Clear the tool or leave the page to drop it from memory.
よくある質問
Is my signature uploaded?
No. The PDF, the signature image, and the download are built only in this browser.
Where is the origin for X and Y?
In the form and preview clicks, from the top-left of the page in PDF points. The library draws using the PDF bottom-left origin internally.