Is PDF Merger free to use?

Yes, completely free. No subscription, no registration, no hidden fees. Merge unlimited PDF files as many times as you want at no cost.

How many PDF files can I merge at once?

You can merge up to 20 PDF files in a single session. Each file can be up to 50MB in size. For larger batches, simply process them in multiple sessions.

Can I reorder pages before merging?

Yes. After uploading, drag and drop PDF thumbnails to rearrange their order, or use the arrow buttons to move files up and down the list before clicking merge.

Does PDF Merger work on mobile devices?

Yes, works on all devices including iPhone, iPad, Android tablets, and desktop computers. The interface adapts to screen size for easy mobile use.

Is my data safe and private?

Yes. All processing happens entirely in your browser. Your PDF files never upload to our servers and are automatically deleted after merging. Complete privacy guaranteed.

What PDF formats does PDF Merger support?

Supports standard PDF files (.pdf). Works with scanned PDFs, form PDFs, and image-based PDFs. Output is always a single, standard PDF file.

How long does it take to merge PDFs?

Most PDFs merge in 2-5 seconds depending on file size and quantity. Large files (40MB+) may take 10-15 seconds. Download begins immediately after processing completes.

Can I split or delete pages from PDFs?

PDF Merger focuses on combining files. For removing or splitting pages, use our separate PDF Splitter tool, then merge the results with PDF Merger.

reorder pages

PDF Merger — reorder pages

Merge multiple PDF files into a single document online. Reorder pages and combine PDFs easily.

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Click or drag PDF files here

Add at least 2 PDFs — drag to reorder before merging

How to use PDF Merger

Upload your PDF files

Click the blue 'Choose Files' button or drag and drop multiple PDF documents directly into the upload area. You can select up to 20 PDF files at once from your computer.

Arrange pages in your preferred order

After upload, PDF thumbnails appear in the left panel. Drag and drop each PDF thumbnail to reorder them. Use the up/down arrow buttons next to each file to adjust the sequence of your merged document.

Click Merge and download

Once your PDFs are in the correct order, click the green 'Merge PDF' button at the bottom. Your merged file will generate in seconds. Click 'Download' to save the combined PDF to your device.

Frequently Asked Questions

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