Is there a limit to how many PDFs I can merge?

You can merge up to 20 PDF files at once for free.

Will the formatting be preserved?

Yes, merging simply combines the pages as they are. No formatting or content is altered during the process.

Can I merge encrypted files?

No, files must be standard unencrypted PDF documents before they can be merged.

Merge PDF

Combine multiple PDFs into one document.

Free No Signup 100% Private No Watermark

Tap to select or drop files here

Processed 100% locally in your browser

Up to 50 MB per file and 150 MB per batch

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How to Use Merge PDF in 3 Easy Steps

Fast, local, and completely free with no software installation required.

Select or Drop Your File

Choose or drag-and-drop your file into the secure workspace directly from your device.

Customize Settings & Process

Adjust desired quality, options, or target formatting in real-time with instant browser processing.

Download Your Finished File

Save your optimized, watermark-free result immediately with zero server uploads or tracking.

About Merge PDF

Our PDF Merger allows you to combine two or more PDF files into a single document. You can easily reorder the files before merging to ensure the pages appear in the correct sequence. The entire process happens in your browser, keeping your sensitive documents private.

All file conversions, resizing, and processing take place directly in your browser using modern WebAssembly and HTML5 Canvas technologies. No data is stored, tracked, or sent across external networks.