PDF

PDF Merger

Merge multiple PDFs into one file. Reorder documents, preserve page sizes, and download your combined PDF without uploading files.

Privacy and limitations

Your tool input is processed in this browser rather than submitted to our server. Large inputs can be slow or exceed your device's memory. Keep a copy of the original and check the output before relying on it; formatting or conversion does not establish that the content is correct or safe.

Read the privacy policy
Overview

About PDF Merger

Combine two or more unlocked PDF files into one document, in the order you choose. Pages retain their original sizes and rotations, and existing text and vector content are copied without rendering them as images. All processing runs locally in your browser.

Quick start

How to use this tool

  1. 1Choose or drop at least two unlocked PDF files.
  2. 2Check the page counts and use the arrows to reorder entire files. Pages inside each PDF keep their original order.
  3. 3Remove unwanted files or add more, within 100 files, 100 MB and 500 total pages.
  4. 4Set an optional output filename and select Download PDF.
Where it helps

Common use cases

Combine invoices or receipts into one PDF.
Join report sections while preserving mixed page sizes.
Collect scanned documents into a single file for sharing.
Good to know

Frequently asked questions

Does merging blur the pages?

The merger copies PDF pages directly instead of taking screenshots, preserving existing text and vector artwork. Scanned images retain their original quality; merging cannot sharpen an already blurry scan.

Can I merge password-protected PDFs?

No. Unlock your PDFs first. Invalid, encrypted or unsupported files are rejected with an error.

What happens to forms, signatures and bookmarks?

Supported interactive form fields are flattened to their visible appearance. Forms that cannot be flattened may fail export. Digital signatures are not preserved as valid signatures. Document bookmarks, portfolios, attachments and interactive cross-document links are not preserved. Use ordinary page-based PDFs for reliable results.

Can I reorder individual pages?

This tool reorders whole documents. Each document keeps its internal page order.

Are my documents uploaded?

No. Your files are processed in your browser. Large batches can use substantial memory; choose a smaller batch if your device struggles.

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"runs_in_browser": true,

"data_sent_to_server": false,

"signup_required": false,

"price": "free",

"category": "PDF Tools"

}

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