Merge PDFs.
One File. Your Way.
Combine multiple PDFs into one — in any order, entirely in your browser. Drag to reorder, merge in seconds, nothing ever leaves your device.
0
Files uploaded to any server
Merging happens entirely in your browser
0%
Page order preserved
Output matches your upload sequence exactly
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Formats accepted
PDF, PDF, and PDF — one tool, one job
Why it matters
Why Merge Instead of Attach?
One file to email
Sending 6 PDFs as attachments means 6 downloads for the recipient. One merged PDF is professional, portable, and impossible to lose.
Organized document packages
Proposals, quotes, and contracts all belong together. Merge them into a single professionally ordered document your client can read cover to cover.
Archive multiple receipts
Tax season? Expense reports? Merge all your receipts and invoices into one indexed PDF instead of managing a folder of loose files.
Step by step
From Upload to Download in Seconds
Four steps. No sign-up, no queue, no waiting.
- 01
Upload your PDFs
Drag and drop any number of PDFs into the upload zone — or click to browse. Each file is loaded locally and never sent anywhere.
Drop PDFs here or click to browse1report.pdf2.1 MB2invoice.pdf0.8 MB3contract.pdf1.4 MB - 02
Reorder to your liking
The upload panel shows your files as a numbered list. Drag and drop to rearrange — the order you see is the order in the output.
Drag to reorder
1invoice.pdfdragging…2report.pdf3contract.pdfDrop to place in position
- 03
One-click merge
Hit Merge PDFs and FileCrisp combines each file sequentially in your browser. Large multi-file merges stream through without blocking the tab.
Merging 3 files…
Processing invoice.pdf (2/3)
55%
Processing entirely in your browser — never uploaded
- 04
Download your result
Your merged PDF is ready immediately. Download it directly or find it in your Downloads panel — it persists across page refreshes.
Merged!
merged-output.pdf
3
Files
24
Pages
4.2 MB
Size
Order matters
Your Upload Order = Your Output Order
The sequence you add PDFs is exactly the sequence they appear in the merged document. Reorder at any time before merging.
Upload stack
Report Q1.pdf
8 pages
Invoice.pdf
3 pages
Contract.pdf
13 pages
Drag to reorder
Merged output
merged-output.pdf
24 pages total
Tip
FileCrisp processes files sequentially, releasing each one from memory after merging — so even combining large PDFs stays stable.
FAQs
Frequently Asked Questions
Everything you need to know — answered plainly.
Ready to merge your PDFs?
Free, private, and instant — no account needed.