Ký PDF
Thêm chữ ký của bạn vào tài liệu
Drop your PDF file here
or click to browse
Xử Lý Trên Trình Duyệt
Tệp được xử lý cục bộ trong trình duyệt của bạn
Tự Động Xóa
Tệp tự động bị xóa sau khi xử lý
Không Cần Đăng Ký
Sử dụng tất cả công cụ mà không cần tạo tài khoản
Hoạt Động Mọi Nơi
Mọi thiết bị, mọi trình duyệt, không cần cài đặt
Cách Ký PDF
- 1
Chọn hoặc kéo tệp PDF của bạn vào khu vực tải lên.
- 2
Vẽ, nhập hoặc tải lên chữ ký của bạn.
- 3
Đặt vị trí chữ ký của bạn và tải xuống PDF đã ký.
Why Sign PDFs Online?
Digital signatures save time by eliminating the need to print, sign, and scan documents. Sign contracts, forms, and agreements instantly from any device.
Signature Options
- Draw: Create a handwritten signature using your mouse, trackpad, or finger on touch devices.
- Type: Enter your name and choose from elegant script fonts.
- Upload: Use an image of your actual signature for authenticity.
Common Uses
Sign contracts, authorization forms, tax documents, medical forms, school permission slips, and any document requiring your signature. Add dates and initials alongside your main signature.
Câu Hỏi Thường Gặp
How do I sign a PDF online?
Upload your PDF, create your signature by drawing, typing, or uploading an image, then click where you want to place it on the document.
Is this a legally binding digital signature?
This tool adds visual signatures to PDFs. For legally binding cryptographic signatures, you may need a certified digital signature service.
Can I add multiple signatures?
Yes, you can add multiple signatures to different pages or positions within your PDF document.
Is signing PDFs free?
Yes, our PDF signing tool is completely free with no registration required.
Can I resize or move my signature after placing it?
Yes, after placing your signature you can drag it to reposition and use the corner handles to resize it before finalizing.
What's the difference between draw, type, and upload?
Draw lets you create a handwritten signature with your mouse or finger. Type creates a stylized text signature. Upload uses an image of your existing signature.
Can I save my signature for future use?
Your signature is created during each session. For convenience, you can save the signature image separately and upload it for future documents.
Will my signature look professional?
Yes, drawn signatures are smoothed automatically, and typed signatures use elegant script fonts. Uploaded images maintain their original quality.
Can I sign on specific form fields?
Yes, you can place your signature anywhere on the page, including on or near signature lines, form fields, or any designated signing area.
Does signing work on mobile devices?
Yes, drawing signatures works great on phones and tablets using your finger or stylus. Touch controls make positioning easy on any device.