Merge PDF Files
Select two or more PDF files to safely combine them into one document.
Click to upload or drag PDFs here
How To Use
- Upload PDF Files — Click the upload area or drag and drop multiple PDF files.
- Review & Arrange — Check the file list and remove any files you don't want to merge.
- Download — Click the merge button and download your combined PDF.
How to Merge PDF Files Online for Free
Combining multiple PDF documents into a single file has never been easier. AIAZHTools lets you merge two or more PDFs directly in your browser — no uploads, no servers, no risk. Simply select your PDF files using the file picker or drag them into the upload area. The tool will combine all pages from each file into one unified PDF document that you can download instantly.
The merge process preserves the original quality, fonts, and formatting of every page. Pages are added in the order you select the files, so make sure to upload them in the sequence you want. You can add as many PDF files as you need — there are no limits on the number of files or total file size. The entire operation happens locally in your browser using the pdf-lib library.
Unlike server-based PDF mergers that upload your files to unknown servers, AIAZHTools processes everything locally. This means your confidential documents, financial records, or sensitive contracts never leave your device. Perfect for combining invoice batches, merging chapter files, assembling report sections, or any workflow where you need to consolidate multiple PDFs into one. The output PDF maintains full fidelity with the originals.
No File Limits
Merge as many PDFs as you need. No restrictions on file count or total size — everything runs in your browser.
100% Private
Your PDFs never leave your device. All merging happens locally using pdf-lib, ensuring complete document security.
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