PDFSlick

Merge PDF

Processed locally — file never leaves your browser

Combine multiple PDF files and images into a single PDF document.

How it works

  1. 1

    Add your PDF files

    Drag and drop multiple PDFs onto the upload area, or click to browse your device. You can add as many files as you need.

  2. 2

    Arrange the order

    Hover over a file and use the arrow buttons to move it up or down. The final PDF will follow this order.

  3. 3

    Click 'Merge PDFs'

    All processing happens instantly inside your browser using pdf-lib. Your files are never sent to any server.

  4. 4

    Download your merged PDF

    Click Download to save the combined PDF to your device. That's it — no watermarks, no sign-up required.

Your file never leaves your device

This tool runs entirely in your browser using pdf-lib. Nothing is uploaded. Safe for Aadhaar, PAN, bank statements, and confidential documents.

Frequently asked questions

Is this PDF merger free?

Yes, completely free. There are no hidden charges, no premium tier, and no file limits.

Are my files uploaded to a server?

No. This tool runs entirely in your browser using pdf-lib. Your PDFs never leave your device. It's safe to use with Aadhaar cards, PAN cards, bank statements, and other sensitive documents.

How many PDFs can I merge at once?

There is no hard limit. You can merge as many files as your browser's memory can handle. For most users, merging 20–30 PDFs works without any issues.

Can I merge PDFs on my phone?

Yes. PDFSlick works on all modern mobile browsers — Chrome, Safari, Firefox. Just tap the upload area to select files from your phone or cloud storage.

What if one of my PDFs is password-protected?

Password-protected PDFs cannot be merged directly. Use our Unlock PDF tool first to remove the password, then merge.

Will the merged PDF have a watermark?

Never. PDFSlick is free and adds no watermarks to your documents.