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online pdf merger

Costless PDF Merger

You can use PDF merge online to combine multiple PDF documents into one single file. You only have to upload many PDF files and merge them into one file without any signup.
combine pdf files online

Combine PDF Files Online

Our PDF combining tool enables you to instantly merge multiple PDF documents in one by clicking a few buttons. No email address is required to use this free online tool.
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Supports All Systems

Our PDF tools work on all operating systems like Windows, macOS, and Linux. It is designed to meet the performance demands of each browser as well as OS.

Your file security and privacy are guaranteed.

As a member of the PDF Association, HiPDF has received international authoritative certifications, including ISO/IEC 27001, SSI SECURE, etc. All files uploaded will be permanently deleted within 60 minutes after processing. We are committed to providing users with PDF solutions and ensuring their privacy and file security.

How to merge PDF online?

choose pdf files

Step 01. Choose PDF files

Launch HiPDF free PDF merger online.
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Step 02. Merge PDF

Upload files and click the "Merge" button to start.
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Step 03. Download merged PDF

Once merged, download the merged PDF files.
Start Merge PDF

Free PDF joiner for everyone.

IT Service

IT staff use HiPDF to combine multiple files into one for archiving.
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Lawyers join multiple testimonies into one document for easy reading.


HiPDF enables students to combine multiple pages for printing and submitting.
Merge PDF For Free

FAQs about how to combine PDF online.

You can use HiPDF web-based tools across platforms anywhere and anytime, including on Mac, Windows, or Linux.

Yes. HiPDF online tools are free to use. You can also go premium to unlock more advanced features without any usage or file size limit.

You can always use HiPDF to easily combine the needed PDF files into one to save or share.

Try PDF Merger

Free PDF tools process PDF tasks online.


HiPDF Online Tools quality rating:

4.8 (188,357 Votes)
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We've already perfectly processed 313,254,587 files with a total size of 10,124 TB