签署 PDF
在任意 PDF 页面上放置、缩放并添加签署时间。
- 100% 设备端本地处理
- 零云端上传
- 绝无水印
完全隔离的 Android 架构
采用本地沙盒内存设计。所有操作直接在您的手机处理器上运行，无需外部云端排队。
毫秒级响应 (< 300ms)
0 KB（完全离线）
为什么选择 ScanOrbit 的 签署 PDF
专为极速、高清和严格隐私打造，无需登录账号或连接任何第三方云服务。
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.
Transparent Vector Ink
Scanned paper signatures automatically have their white background stripped away, creating a clean transparent stamp that overlays contracts naturally.
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.
只需简单 3 步
无需专业技巧，几秒钟即可生成专业级文档结果。
Open Your PDF Document
Load any PDF contract, agreement, or scanned document directly from your device storage or camera scan.
Select or Create Your Signature
Choose an existing saved signature or create a new one by drawing, typing, or scanning from paper.
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.
技术规格与兼容标准
- 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
关于 签署 PDF 的常见问题
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.
相关 PDF 与文档扫描工具
在 Android 上获取 签署 PDF
无需互联网连接，绝无隐私跟踪，随时在手机上畅享全部 27 款强大扫描与 PDF 工具。