Free PDF Merger

Merge PDF Online

Combine multiple PDF files into a single document online. Free, fast, and private with no watermark.

No signup No watermark Files auto-deleted Up to 1 GB
PDF

Merge up to 50 files

Combine · Preserve · Download

Convertr uses qpdf to merge pages without re-encoding, so quality is preserved.

Combine scanned pages

Merge individual scanned pages into a single document when your scanner saves each page as a separate file.

Assemble reports and contracts

Combine cover pages, body sections, and appendices from different PDFs into one cohesive document.

Merge invoices and receipts

Combine multiple monthly invoices or receipts into a single PDF for easier filing or submission.

Online PDF merger

How to merge PDFs online

Use this page when you need to combine multiple PDFs into one without installing Acrobat or a desktop tool. Convertr keeps the workflow simple: upload the files, confirm the order, and download the merged document.

  1. 1

    Upload two or more PDF files from your computer, phone, or tablet.

  2. 2

    Files are merged in the order you upload them.

  3. 3

    Start the merge and wait while Convertr combines the PDFs.

  4. 4

    Download the merged PDF and share, print, or archive it.

More PDF tools

Related PDF and document tools

Need another PDF operation? Try these other free Convertr tools.

PDF Compressor

Shrink PDF files with quality-preserving presets.

PDF Splitter

Extract pages or split every page into separate files.

PDF Converter

Convert PDF files to and from DOCX, JPG, PNG, and other document formats.

Document Converter

Convert PDF, DOCX, EPUB, and other document formats from one hub.

Frequently asked questions

Is this PDF merger free?

Yes. Convertr lets you merge PDF files for free, with no account, no watermark, and no software installation.

How many PDFs can I merge at once?

You can merge up to 50 PDF files in a single session. Each file can be up to 1 GB.

What is the maximum PDF file size?

Each PDF file can be up to 1 GB, the same limit as every other Convertr tool.

Are uploaded PDFs private?

Files are processed on Convertr servers and automatically deleted after merging. The tool is built for quick file conversion, not long-term document storage.

Does merging change PDF quality?

No. qpdf concatenates the pages without re-encoding or re-compressing images, so the merged PDF keeps the exact same quality as the originals.

Does Convertr support password-protected PDFs?

Remove the password from your PDFs before uploading. Convertr does not unlock encrypted PDFs and the merger will skip files it cannot read.