Free PDF toolsthat never leave your browser
Merge and compress PDF files instantly — no uploads, no accounts, no waiting.
Merge PDF
Combine multiple PDFs into one, in the order you choose.
Merge files →Compress PDF
Shrink a large PDF down to size, without leaving your browser.
Compress a file →How it works
Drop your file
Drag and drop a PDF onto the tool, or click to browse and select one from your device. Nothing uploads yet — the file just loads into your browser.
Choose your tool
Pick Merge to combine several PDFs into one in the order you want, or Compress to shrink a large file down to a manageable size.
Download instantly
Your new PDF is ready in seconds. Since everything runs locally on your device, there is no upload queue and no wait.
100% private
Files are processed on your device. Nothing is ever uploaded to a server.
No sign-up
Drop your file and go. No account or email required.
Free to use
Core tools are free, with no limits that get in your way.
Frequently asked questions
Is it really free?
Yes. Merging and compressing PDFs is free, with no artificial limits on typical file sizes.
Where do my files go?
Nowhere. Processing happens locally in your browser — your PDF is never uploaded to a server.
Will compressing lose quality?
Some, depending on the setting you choose. Pick "Best quality" for light compression, or "Smallest file" to shrink as much as possible.
Do I need to install anything?
No. TrimMyPDF runs entirely in your web browser — no downloads, no browser extensions, and no desktop software to keep updated.
Is there a file size limit?
There's no artificial cap we impose. In practice, the limit is your device's own memory rather than a rule we've set — most PDFs, including large scanned documents, process without issue.
Can I use TrimMyPDF on my phone?
Yes. Both tools work in any modern mobile browser, so you can merge or compress PDFs from your phone or tablet without installing an app.