Merge PDF
Combine multiple PDFs into one file in seconds
🔒 100% free · no signup · files never leave your device
Real-world paperwork rarely arrives as one tidy file. A job application is a CV here, certificates there and a cover letter somewhere else; a month of bookkeeping is thirty separate invoices; a scanned contract comes out of the scanner as one PDF per page. Most employers, government portals and accounting systems expect a single combined document, so merging PDFs is a daily task for anyone who deals with digital paperwork.
This free PDF merger lets you combine PDF files online in any order — drop them in, rearrange with the arrow buttons, and merge. Pages are copied 1:1 using pdf-lib, text stays selectable and searchable, images keep their original quality, and no watermark is ever added. Because the merging happens entirely in your browser, confidential contracts, medical records and financial statements never leave your device — a real advantage over server-based tools where your documents sit on someone else's machine.
Why use Merge PDF
Assembling a job or university application
Combine your CV, cover letter, diplomas and reference letters into one PDF so the recipient gets a single, correctly ordered file.
Bundling monthly invoices or receipts
Accountants often need one PDF per period — merging dozens of small invoices into a single file simplifies archiving and audit.
Joining scanned pages of a contract
Flatbed scanners output one file per page; merging reassembles the document in the right sequence.
Combining reports from different departments
Weekly status PDFs from several teams can be joined into a single management report in seconds.
Pro tips
- Name files with leading numbers (01-cover.pdf, 02-cv.pdf) before merging — it makes verifying the final order much faster.
- Merging page-by-page scanner output? Check that no page is rotated before combining; fixing orientation later means splitting again.
- For very large merges, merge in batches of 20–50 files, then merge the results — it uses less memory and is easier to verify.
- After merging, save the result with a descriptive filename including a date; 'merged.pdf' files pile up fast.
How to use Merge PDF
- 1Drop two or more PDF files
- 2Reorder them with arrow buttons
- 3Click Merge
- 4Download the combined PDF
Frequently Asked Questions
Is there a page limit?▾
No fixed limit — merging happens locally in your browser, so very large files depend on device memory.
Will quality be affected?▾
No. Pages are copied 1:1 using pdf-lib — text stays selectable and images keep original quality.