How to Merge PDF Files Into One Document (Free, No Signup)
Combine multiple PDF files into a single document online. Works on any device, no software needed, completely free.
When Do You Need to Merge PDFs?
Merging PDF files is one of the most common document tasks. You might need to:
- Combine a cover letter and CV into one PDF for a job application
- Merge several invoices into one monthly report
- Combine multiple scanned pages into a single document
- Join chapters of a book or presentation into one file
Whatever the reason, the process takes seconds online.
How to Merge PDFs on Breklo
1. Go to Breklo's Merge PDF tool
2. Click Browse files or drag and drop multiple PDF files
3. Reorder files using the ↑ ↓ arrows if needed
4. Click Merge PDFs
5. Your combined PDF downloads automatically
There is no limit on the number of files you can merge.
How to Reorder Pages Before Merging
Order matters when merging. On Breklo, each file appears in the list with up and down arrows. Click the arrows to move files into the correct order before merging.
If you need to reorder individual pages (not just whole files), use the Organize PDF tool after merging.
Merging PDFs on Desktop (Without a Browser)
On Mac, you can merge PDFs using Preview for free:
1. Open the first PDF in Preview
2. Go to View → Thumbnails
3. Drag the second PDF into the thumbnail sidebar
4. Save the file
On Windows, there's no built-in PDF merge tool. Using an online tool like Breklo is the simplest option.
After Merging: Compress the Result
Merged PDFs are often larger than necessary because they combine all the content from the source files. After merging, run the result through Compress PDF to reduce the final file size significantly.
Keep Pages Organised
If the merged document has pages in the wrong order, use Organize PDF to drag pages into the right sequence. You can also delete unwanted pages or extract specific pages from the merged document.
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Frequently asked questions
Is there a limit on how many PDFs I can merge?
No. You can merge as many PDF files as you need in one go. There is also no file size limit per file (up to 100 MB each).
Can I merge PDFs on my phone?
Yes. Breklo works on any modern browser including Safari on iPhone and Chrome on Android. No app download needed.
Will merging PDFs reduce quality?
No. Merging only combines the existing pages — it does not re-render or recompress any content. The quality of each page is preserved exactly.
Can I merge password-protected PDFs?
Password-protected PDFs need to be unlocked before merging. Remove the password first, then merge.
How do I merge PDFs in a specific order?
Use the up and down arrows next to each file in the Breklo merge tool to arrange them in the correct order before clicking Merge.
Is my data safe when merging PDFs online?
Yes. Breklo processes everything in your browser. Your files are never uploaded to any server.