Merge PDF
Combine several PDF files into one document in the order you choose.
- Unlimited files per merge
- Drag and drop reordering with page previews
- Bookmarks preserved from each source file
Drag & drop your file here
orFiles are encrypted in transit and deleted automatically after processing.
About the Merge PDF tool
Merge PDF joins contracts, invoices and chapters into a single file. Drag the thumbnails to set the order, then download one clean document with continuous page numbering.
Combine multiple PDF files into a single document without installing any software. Upload your files, arrange them in the order you want, and download one clean PDF ready to share or print.
How to merge PDF files
- 1Upload two or more PDF files from your computer or phone.
- 2Drag the thumbnails to reorder the pages the way you want them to appear.
- 3Click merge and download the combined PDF as a single file.
Why merge PDFs online
Merging PDFs is useful whenever you need to send a single file instead of several attachments, such as combining a cover letter with a resume, joining scanned receipts into one report, or assembling chapters of a document into a final draft. The tool keeps the original formatting, fonts, and images of each file intact, so the merged document looks exactly like the sources it was built from.
Files are transferred over an encrypted connection and removed from the server automatically after processing, so you do not need to create an account or worry about copies being kept. The resulting file size is roughly the sum of the input files, though shared fonts and images can sometimes make the combined PDF slightly smaller than expected.
Why use PDF Leader for Merge PDF
Fast
Most files are processed in a few seconds, even large ones.
Private
Encrypted transfer and automatic deletion after processing.
Any device
Runs in the browser on desktop, tablet and phone.
No limits
No watermarks, no page caps and no forced sign up.
Frequently asked questions
Can I change the order of pages before merging?+
Yes, once your files are uploaded you can drag their thumbnails into any order before starting the merge, including reordering pages within a single file if needed.
Will bookmarks and links be preserved?+
Bookmarks from each source file carry over into the merged document, though bookmarks that point to another file rather than a page anchor may not survive the merge.
Is there a limit to how many PDFs I can merge at once?+
You can merge as many files as your browser can comfortably upload in one session; very large batches may simply take longer to process.
Do I lose quality when merging PDFs?+
No, merging only combines the existing pages and does not recompress images or text, so the visual quality of each page stays the same as the original file.
Can I merge password-protected PDFs?+
You will need to remove the password first, since encrypted files cannot be read and combined until they are unlocked.
Does the tool work on mobile devices?+
Yes, the merger runs in your browser, so you can upload photos or PDFs saved on a phone or tablet and download the combined file directly to your device.