Gộp PDF
Miễn phí·Không cần đăng ký·Tệp của bạn không bao giờ rời thiết bị
How to merge PDF files in 3 steps
Combine any number of PDFs into a single document without installing software or creating an account. Everything runs locally — your files stay yours.
Select your PDFs
Drag and drop two or more PDF files into the box above, or click to browse your device.
Arrange the order
Use the arrows to put files in the exact order you want them to appear in the final document.
Merge and download
Click Merge PDF. Your combined document is generated right in your browser and downloads instantly.
Why merge PDFs with AmiPDF
A privacy-first merger that works the way you expect — fast, clean, and genuinely free.
Riêng tư từ thiết kế
Xử lý diễn ra hoàn toàn trong trình duyệt của bạn. Không tải lên, lưu trữ hay chia sẻ bất cứ thứ gì — tuyệt đối.
Không đăng ký, không hình mờ
Không tài khoản, không email, không giới hạn. Kết quả đầu ra y hệt bản gốc.
Lossless quality
Pages are copied as-is: text stays selectable and searchable, images keep full resolution.
Chạy trên mọi thiết bị
Trải nghiệm nhanh như nhau trên Windows, Mac, Linux, Android và iOS — không cần cài.
When to merge PDF files
Anytime one document tells the story better than five. Merge scans, exports, and downloads into a single file that is easier to email, archive, sign, or print.
Because AmiPDF never uploads your documents, it is a safe choice for employment contracts, tax paperwork, medical records, IDs, and anything else you would not want sitting on a third-party server.
Merge PDFs on any platform
AmiPDF chạy trong trình duyệt — không cài đặt, không cấu hình, không cập nhật.
Windows
Chrome, Edge, Firefox
macOS
Safari, Chrome
Linux
Any modern browser
iOS
Safari on iPhone, iPad
Android
Chrome, Samsung Internet
Frequently asked questions
Is merging PDF files really free?
Yes. Merge PDF — like every basic AmiPDF tool — is completely free with no signup, no page limits, and no watermarks.
Are my files uploaded to a server?
No. AmiPDF merges files locally in your browser. Your documents never leave your device, which makes it safe for contracts, IDs, and other sensitive files.
How many PDFs can I merge at once?
There is no fixed file-count limit. The practical limit is your device memory — for the smoothest experience keep the combined size under roughly 200 MB per session.
Will merging reduce the quality of my PDFs?
No. Pages are copied losslessly into the new document. Text, fonts, links, and images are preserved exactly as they were in the source files.
Can I merge password-protected PDFs?
Encrypted files need to be unlocked first. Use our free Unlock PDF tool with your password, then merge the unlocked copies.
Does it work offline?
The page itself loads from the web, but once loaded, all processing is local. Your files are never transmitted while you work.
Công cụ PDF liên quan
Tiếp tục — mọi thứ bạn cần để làm việc với PDF, tất cả miễn phí và chạy cục bộ.