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Merge PDF

Combine multiple PDFs into one file.

Drop PDFs here

or click to browse files

How to Merge PDF Files Offline (in your browser)

1

Select your PDF files

Drag and drop multiple PDF documents into the upload box above, or click to choose files from your device.

2

Reorder and arrange

Click and drag the file thumbnails to reorder them exactly how you want them to appear in the final merged document.

3

Merge and Download

Click the "Merge & Download" button. The PDFs will be combined instantly, directly on your device, without sending any data to a server.

Why use ZimaPDF to combine PDFs?

100% Private & Secure

Unlike other tools, we never upload your sensitive documents to a server. Mering happens entirely within your web browser.

Lightning Fast

Because there are no slow uploads or server processing queues, your files are merged instantly on your own hardware.

No File Size Limits

Forget artificial 50MB caps. If your device has the memory to handle it, you can merge hundreds of large pages together.

Smart Fallback Engine

If your PDFs are structurally damaged or contain complex XFA forms, our built-in rasterizer automatically processes them so you still get a working output.