Free PDF tools
Merge, split, or compress PDFs directly in your browser. No file is ever uploaded to a server.
How it works
How do I merge PDFs?
Select "Merge", then upload two or more PDF files. Drag them into order using the arrow buttons, then click "Merge". The combined PDF will download to your device — all processing happens in your browser, so nothing is ever uploaded.
How do I split a PDF?
Select "Split" and upload a single PDF. Each page will be extracted into its own PDF file. You can download them individually or all at once. Ideal for extracting specific pages from a large document.
How much does PDF compression reduce file size?
Results vary by file content. PDFs made of scanned images typically see little reduction since this tool removes unused objects and metadata rather than re-encoding image streams. PDFs generated from documents (Word, Keynote, etc.) often see moderate reductions.
Are my PDFs secure?
Yes — all PDF operations happen locally in your browser using JavaScript (the pdf-lib library). Your files are never uploaded anywhere. You can disconnect from the internet and the tool still works.
What is the maximum PDF size?
Each PDF file can be up to 50 MB. Processing large files in a browser may take a few seconds depending on your device. For very large PDFs, a desktop browser on a modern machine works best.