Merge PDF Files
Combine several PDF files into one document in the order you choose. Runs entirely in your browser, so your documents stay private.
Merge PDF Files
Combine multiple PDF files into one document
100% Secure
Files processed locally in your browser
Unlimited
No file size or quantity limits
Fast
Instant processing, no upload required
Privacy First
Your files are processed entirely in your browser. They are never uploaded to our servers, ensuring complete privacy and security.
About Merge PDF
The Merge PDF tool joins two or more PDF files into a single document, in the order you choose. It is built for the everyday job of turning a pile of separate files (a cover letter, a CV and certificates, or several scanned invoices) into one file you can attach to an email or upload to a form that only accepts a single PDF.
Merging happens inside your browser using the pdf-lib library. Your files are read from your device, combined in memory and handed back as a download, so nothing is uploaded to ToolGhost servers. That makes it a reasonable choice for contracts, bank statements and other documents you would rather not send to a third party.
How to use the Merge PDF
- Click the upload area and select at least two PDF files. You can add more files at any time.
- Check the list. Use the up and down arrows next to each file to put them in the order you want them to appear.
- Remove any file you added by mistake with the remove button.
- Click Merge PDF Files. The combined document downloads automatically as merged-[timestamp].pdf.
What it can do
Page order you control
Pages keep their original order inside each file, and the files are joined in the order shown in your list.
No quality loss
Pages are copied across as they are. Text stays selectable and images are not recompressed.
Local processing
The merge runs on your device, which also means it works on a slow connection once the page has loaded.
No watermark or sign-up
The merged file contains only your pages, with nothing added.
When it is useful
- Combining a scanned ID, proof of address and application form into the single PDF a visa or bank portal asks for.
- Joining monthly invoices into one file for an accountant.
- Building a single report from chapters written by different people.
- Putting a cover page in front of a finished document.
Good to know
- Password-protected or encrypted PDFs cannot be merged. Save an unprotected copy first.
- Very large merges use your device memory. If your browser struggles, merge in smaller batches.
- Bookmarks and form fields from the source files may not carry over to the merged file.
- Page numbers printed inside the documents are not renumbered.
Read the guide: Merge PDF Tool Guide
Related tools: Split PDF, Compress PDF, PDF to Image, PDF Editor