Merge PDF Files Online
Dropping several PDFs into one file? This stitches them together into a single document, merged in the order shown in your list — so get the order right before you merge. Invoices into a statement, chapters into one report, receipts into a bundle for the accountant: same job, run on local PDF engines right here in your tab. A batch can hold up to 2,000 combined pages per batch, and because every page is copied on your own hardware, a real monster batch can strain browser memory — split giants down with Split PDF first.
Drop PDF files here or click to browse
Processed locally — files never leave your device
How to use
- Drop all the PDF files you want to combine (order follows file selection).
- Merging runs instantly in your browser — nothing is uploaded.
- Download the combined PDF.
Frequently asked questions
Is it safe to merge confidential PDFs here?
Yes — that is exactly what this tool is for. Merging happens inside your browser via JavaScript; your documents never touch any server, making it safe for contracts and financial records.
How many files can I merge at once?
Your combined document can hold up to 2,000 pages per batch. Every page is copied locally on your hardware, so very large batches can exhaust browser memory — split huge documents into smaller PDFs first with Split PDF.
In what order are the files merged?
Files are merged in the order shown by their result cards. To reorder, remove them and select again in the desired order.
Are bookmarks and forms preserved?
Page content is fully preserved. Interactive features such as form fields may be flattened during merging — verify the output for critical documents.
Can I merge only specific pages from each PDF?
Currently the tool merges entire documents. To extract specific pages first, use our Split PDF tool, then merge the pages you need.
What's the maximum file size?
There's no server limit because everything runs on your device. The practical limit is your browser's available memory — typically several hundred MB of PDF data.
Related tools
Need to split a PDF first? Try Split PDF. Converting images to PDF? Use JPG to PDF, or the reverse with PDF to JPG. For image compression, check Compress JPG or Compress PNG.