How to merge PDF files online โ in 3 steps
SlimIO's PDF merger joins two or more PDF documents into a single file. Everything runs in your browser, so your documents stay private and there is nothing to install.
- 1. Add your PDFs. Drop in two or more PDF files, or click to browse and select several at once.
- 2. Arrange the order. Use the up and down arrows to control which pages come first.
- 3. Download. Click Merge and save the combined PDF straight to your device.
Why merge PDFs?
Whether you are combining scanned pages, joining a report with its appendices, or assembling a bundle for a submission, a single PDF is easier to share, email, and print. No account, no watermark, no waiting in a queue.
Is it a free PDF merger?
Yes. The core merge is free. SlimIO is funded by an optional small banner ad, so the tool itself stays open to everyone. You can also compress a PDF before or after merging to keep the final file small.