What does merging PDFs mean?
Merging (or combining) PDFs means taking two or more separate PDF files and joining them into a single PDF document. The pages appear in the order you choose, exactly as they were in the original files.
Common reasons to merge PDFs: work and business (cover letter, resume, portfolio in one application); finance and admin (monthly statements into one annual file); education (lecture notes and handouts before submission); legal (contract and appendices in one file); projects (chapters into a final document). Instead of five attachments, one merged PDF gives recipients everything in order.
How to merge PDF files online (step by step)
Step 1: Click Upload PDFs or drag files onto the upload area. Add two or more PDFs at once.
Step 2: Files appear in a list with filename and page count. Drag items to rearrange — the final PDF follows this order top to bottom.
Step 3: The first file in the list becomes the first pages of the merged document. Review order before merging.
Step 4: Click Merge PDFs. The tool combines all pages in your browser.
Step 5: Click Download to save the merged PDF. The process runs entirely in your browser — we never store your PDFs on our servers.
Tips for better results
Check page orientation before merging — mixed portrait and landscape is fine on screen but can look inconsistent in print.
Compress large PDFs first with our PDF Compressor if the combined file must fit email limits, then merge.
Name files clearly (e.g. 01-cover-letter.pdf, 02-resume.pdf) so sorting is easy.
Keep originals: merging creates a new file; your source PDFs stay unchanged.
Very large files (100MB+) depend on your device; typical documents merge quickly.
Features
- Merge unlimited PDF files in one session
- Drag-and-drop reordering before merging
- Shows filename and page count per file
- Download merged PDF instantly
- Runs in your browser — files not uploaded to servers
- Free with no signup required
Frequently asked questions
Is this PDF merger really free?
Yes. Combine as many PDF files as you need at no cost. No account or payment required.
Is there a file size limit?
There is no server-side limit because merging happens in your browser. Very large files may be slow depending on device memory; typical documents merge instantly.
How many PDFs can I merge at once?
You can add as many files as you need — there is no hard cap on file count.
Are my PDF files uploaded to your servers?
No. Merging runs entirely in your browser using JavaScript. Your documents are not sent to our servers.
Can I change the page order after uploading?
Yes. Drag files in the list to change order before clicking Merge. The final PDF follows the list from top to bottom.
Will passwords or restrictions be preserved?
Unlock password-protected PDFs first. The tool works with standard, unlocked PDF files.
Can I merge PDFs on mobile?
Yes. Use your device file picker; the tool works in mobile browsers.