Contract & Agreement SigningScanOrbit Pro

PDF に署名

署名をどの PDF ページにも配置・拡縮・日付付きで。

  • 100% デバイス内処理
  • クラウドへの送信なし
  • 透かし(ウォーターマーク)なし
PDF に署名 icon

安全な完全ローカル設計

完全にサンドボックス化されたローカルメモリで動作。すべての処理はお使いのスマートフォンのプロセッサ上で直接実行されます。

処理時間

1秒未満(約300ms以下)

通信量

0 KB(通信不要)

主な機能

PDF に署名にScanOrbitが選ばれる理由

アカウント登録やクラウド不要で、高速・高画質・完全なプライバシーを両立します。

Universal Input

3 Flexible Signing Modes

Draw your signature smoothly with your finger or stylus, type your name using elegant typographic scripts, or scan a physical ink signature from paper.

Background Isolation

Transparent Vector Ink

Scanned paper signatures automatically have their white background stripped away, creating a clean transparent stamp that overlays contracts naturally.

Local Stamp Vault

Reusable Signature Vault

Save your verified signatures and company stamps in a secure local vault. Apply them across dozens of pages in seconds with precision pinch-to-scale controls.

利用手順

簡単な3ステップの使い方

専門知識は一切不要。わずか数秒でプロ品質の書類が完成します。

1

Open Your PDF Document

Load any PDF contract, agreement, or scanned document directly from your device storage or camera scan.

2

Select or Create Your Signature

Choose an existing saved signature or create a new one by drawing, typing, or scanning from paper.

3

Place, Resize, and Flatten

Drag the signature to the exact signature line, adjust the size, and tap Done. The PDF is permanently rendered and saved offline.

仕様

技術仕様と標準規格

Signature Input Methods
Finger / Stylus Draw, Font Styling, Paper Scan Digitization
Rendering Engine
High-Resolution Vector Overlay (Lossless PDF Rendering)
Multi-Page Support
Sign single pages or multiple contract sections
Privacy & Watermark
Zero Watermark, Zero Third-Party Cloud Sign-In
Output Standards
ISO 32000-1 Compatible PDF Output
よくある質問

PDF に署名に関するFAQ

Are signatures created in ScanOrbit legally binding?

Yes. Electronic signatures generated and embedded into PDF documents are widely accepted for standard business agreements, contracts, and lease documents under e-signature frameworks like the ESIGN Act and eIDAS.

Can I scan my real handwritten signature from a piece of paper?

Yes! ScanOrbit includes a specialized signature scanner (`sig-scan`) that photographs a pen-and-paper signature, crops the ink, removes the paper background, and saves it as a transparent digital stamp.

Does ScanOrbit put a trial watermark on signed documents?

Never. All documents exported from ScanOrbit are 100% clean, professional, and free of any watermarks or advertising tags.

関連ツール

その他のスキャン&PDF便利ツール

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AndroidでPDF に署名を利用する

インターネット通信やデータ追跡なしで、27種類の全ツールをスマートフォン上で安全にご利用いただけます。