PDF署名

手書きサインを描画または入力して、PDFの任意の位置に配置。サーバー送信ゼロで完全プライベートに契約書を署名。

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PDF署名

印刷やスキャンの手間を省き、ブラウザ上で直接サインを挿入。機密契約書や合意書を安全かつスピーディに完了できます。

🔐 100% Private — Client-Side Execution

All processing happens inside your browser using WebAssembly and HTML5 Canvas. Zero file uploads, zero server tracking. Compliant with LGPD & GDPR.

よくある質問 (FAQ)

Is this a legally binding electronic signature?

This creates a visual signature image embedded in the PDF, similar to a scanned wet signature. For legally binding e-signatures with audit trails, use a dedicated e-signature service.

Does my PDF get uploaded to a server to be signed?

No. The PDF is loaded, signed, and saved entirely inside your browser using local processing — nothing is transmitted anywhere.

Can I sign more than one page?

Currently you sign one page per pass. To sign multiple pages, save the signed PDF, then re-upload it and sign another page.

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Score 99+ on Google PageSpeed Insights

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PDF署名

PDF署名

よくある質問 (FAQ)

Score 99+ on Google PageSpeed Insights

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