Công cụ PDF trực tuyến miễn phí
Hợp nhất, tách, nén, chuyển đổi, chỉnh sửa, ký và bảo vệ các tệp PDF từ bất kỳ thiết bị nào. Chọn một công cụ bên dưới hoặc tìm kiếm tác vụ bạn cần. Hầu hết các công cụ chạy trong trình duyệt của bạn, vì vậy các tệp của bạn vẫn ở trên thiết bị của bạn.
Công cụ PDF phổ biến nhất
Sắp xếp PDF
Gộp tệp PDF, tách PDF, trích xuất hoặc xóa trang và sắp xếp lại theo bất kỳ thứ tự nào.
Tối ưu hóa PDF
Nén PDF xuống dung lượng nhỏ hơn, sửa tệp bị hỏng và làm cho PDF quét có thể tìm kiếm bằng OCR.
Chuyển đổi sang PDF
Chuyển ảnh JPG và tệp Word, Excel, PowerPoint thành tài liệu PDF.
Chuyển đổi từ PDF
Xuất PDF sang Word, Excel, PowerPoint, JPG hoặc PDF/A mà vẫn giữ nguyên bố cục.
Chỉnh sửa PDF
Chỉnh sửa trang PDF, xoay, cắt, thêm số trang và hình mờ.
Bảo mật PDF
Mở khóa hoặc bảo vệ PDF bằng mật khẩu, ký tên, che nội dung nhạy cảm và so sánh hai phiên bản.
Không tìm thấy công cụ PDF nào. Hãy thử từ khóa khác, như gộp, nén hoặc chuyển đổi.
Private by default
Most tools run in your browser, so your files stay on your device.
Fast and simple
Pick a tool, add your file and download the result in a few clicks.
Everything in one place
Organize, optimize, convert, edit and secure PDFs without switching sites.
Free to use
No sign-up, no watermark and no software to install.
Why use DailyOnWeb PDF tools?
Your files stay yours
Most tools work on your device, and the few that use a server delete files after download.
No installs, no waiting
Open a tool in your browser and start. It works on any phone, tablet or computer.
A complete toolbox
From merging and splitting to OCR, signing and redaction, the common PDF jobs are covered.
Free and open to everyone
No account, no watermark and no limit on how often you use a tool.
Free Online PDF Tools for Every Task
DailyOnWeb PDF Tools is a free collection of online tools for working with PDF files. You can merge, split, compress, convert, edit, sign and protect a PDF in your browser, with no sign-up and no software to install.
Organize PDF files
Put pages in order and keep only what you need. Merge PDF combines several files into one, split PDF divides one file into parts, and organize PDF lets you reorder pages. You can also extract PDF pages or remove PDF pages you do not want.
Make a PDF smaller or fix a broken one
Large files are hard to email or upload. Compress PDF reduces the file size, repair PDF tries to recover a damaged file, and OCR PDF turns scanned pages into searchable, copyable text.
Convert to and from PDF
Turn documents and images into PDF with JPG to PDF and Word to PDF. Go the other way with PDF to Word, PDF to Excel, PDF to PowerPoint and PDF to JPG. For long-term storage, PDF to PDF/A creates an archive-ready copy.
Edit and annotate PDF pages
Use edit PDF to add text, shapes and images, and rotate PDF to fix pages that are the wrong way up. Related tools cover page numbers, watermarks and cropping.
Secure, sign and compare PDF files
Lock a file with protect PDF, or remove a password with unlock PDF. Sign PDF lets you draw, type or upload a signature, redact PDF permanently removes sensitive content, and compare PDF shows what changed between two versions.
How to use a PDF tool
- Search for a tool or pick a category above.
- Select your PDF, or drop it on the page.
- Choose the options for that tool, such as page order, compression level or password.
- Click the action button and download the result.
Your privacy comes first
PDFs often hold contracts, invoices and personal data. Most tools here run in your browser, so the file is not sent to a server. The few conversions that need a server say so on their page, and files are removed after the download.
All PDF tools are free, work on phones, tablets and computers, and need no registration.
Câu hỏi thường gặp (FAQs)
What are PDF tools?
PDF tools are online utilities that let you work with PDF files without installing software. You can combine files, split pages, make a file smaller, convert it to another format, edit it, sign it or protect it with a password.
Are these PDF tools really free?
Yes. Every tool on this page is free to use, with no sign-up, no watermark on your results and no software to install.
Are my PDF files safe?
Most tools, such as Merge PDF, Split PDF, Sign PDF and Redact PDF, work inside your browser, so the file never leaves your device. A few tools, such as PDF to Word and Unlock PDF, need a server to do the conversion. Each of those pages says so, and the files are deleted after the download.
How do I merge PDF files into one?
Open Merge PDF, add your files, put them in the order you want and click Merge. You can then download the combined document.
How do I make a PDF smaller?
Use Compress PDF. Choose a compression level, and the tool reduces the file size so it is easier to email or upload.
Can I convert a PDF to Word, Excel or JPG?
Yes. Use PDF to Word, PDF to Excel or PDF to JPG. To go the other way, use Word to PDF or JPG to PDF.
How do I remove or add a password to a PDF?
Use Unlock PDF to remove a password or a print, copy and edit restriction, and Protect PDF to lock a file with a password.
Can I turn a scanned PDF into searchable text?
Yes. OCR PDF reads the text in scanned pages and adds a text layer, so you can search and copy it. It runs in your browser.
Do I need to create an account?
No. You can use every tool right away. There is nothing to sign up for and no limit on how many times you use them.
Do the tools work on a phone or tablet?
Yes. The tools work in any modern browser on phones, tablets and computers, on Windows, macOS, Linux, Android and iOS.
Công cụ liên quan
Gộp File PDF
Kết hợp nhiều tệp PDF thành một tài liệu theo thứ tự bạn chọn.
Nén File PDF
Giảm kích thước tệp PDF trong trình duyệt của bạn trong khi vẫn giữ cho văn bản và hình ảnh có thể đọc được.
Chuyển PDF Sang Word
Chuyển đổi tệp PDF thành tài liệu Word có thể chỉnh sửa (DOCX) và giữ nguyên bố cục.
Tách File PDF
Chia một tệp PDF thành các tệp riêng biệt theo phạm vi trang, từng trang hoặc số lượng trang cố định.