Merge PDF files
into one single file online
or drop your files here
Max file size 100 MB
- No signup needed
- Private & encrypted
- 256-bit SSL
- AES-256 encrypted
- SOC 2 Type II
Merge in 3 easy steps
Upload your files
Add the PDFs you want to combine, drop in as many as you need.
Arrange the order
Drag the files into the exact order you want them in the final document.
Download or share
Download your single merged PDF or share it directly with others.
One place for every PDF task
Every tool you need to edit, convert, sign, and manage your PDF documents.
Three files in. One file out.
Each file becomes one section. Drag to reorder before merging, no page limit, no quality loss.
cover-letter.pdf
portfolio.jpg
auto-converted
resume.docx
auto-converted
application-merged.pdf
4 pagesThe PDF merger people
actually trust
Order you control, clean output, no limits. Everything you need to merge PDFs online.
Your order, your way
Drag to arrange
Drag files into any order before you merge, so the final document reads exactly how you want.
More than just PDFs
Images & Word too
Drop in images or Word files alongside your PDFs, they're converted and merged into the same document.
Original quality kept
Nothing recompressed
Every page keeps the exact text, images, and formatting of the original, no quality loss when merging.
No page or file limit
Merge as many as you need
Combine two files or two hundred, there's no cap on how many pages your merged PDF can hold.
Private and secure
AES encrypted
Your files are encrypted in transit and processed securely. We never share your documents.
Works in your browser
Any device, no install
Merge PDFs on desktop, tablet, or phone, nothing to download or install.
Trusted every day,
by people like you
See what people are saying about merging PDFs with lumr.
TrustScore 4.6 · Based on 3,247 reviews
“I pull a cover letter, a portfolio, and a CV into one tidy PDF in seconds, and the order is exactly how I dropped them.”
Sarah M.
Marketing Manager
“Sending clients ten separate files looked messy. Now I merge everything into one PDF and it just looks professional.”
James K.
Freelance Designer
“I combine contracts, photos, and notes into a single file right from my phone. So quick and nothing loses quality.”
Ana L.
Real Estate Agent
We answer
your questions
Everything you need to know about merging PDF files online.
Absolutely. Drag the files into any order you like before merging, and the final PDF follows that exact sequence.
Yes. You can add images and Word documents alongside your PDFs, they're converted automatically and merged into the same document.
No. Each page keeps the exact text, images, and formatting of the original. We never recompress or downgrade your content when merging.
Absolutely. Your files are encrypted with AES during transfer and processed securely. We follow GDPR best practices and never share your documents with third parties.
You can upload files up to 100 MB each. For most documents this is more than enough.
Security you can trust
Independently audited and compliant with the security and privacy standards your documents demand.
- SOC 2 Type II
- GDPR
- ISO 27001
- HIPAA
- eIDAS
- PCI DSS
Ready to merge your files?
Join millions of users who trust lumr for fast, clean PDF merging. No fees, no hassle.
- Ready in 3 seconds
- 256-bit SSL secure
- Works on any device