Install Zayenha Tools on your device
Quick access from your home screenProfessional PDF compression: levels, image DPI reduction, comparison table, target size. Click "Choose file" or drag a PDF into the drop zone, then click the action button and download the result instantly. It all runs directly in your browser; your files are never sent to an external server. Free, with a quota of 10 operations a day.
Drop PDF files or click
Professional PDF compression: levels, image DPI reduction, comparison table, target size
Upload it in your browser and pick a compression level — the tool reduces the internal image DPI and builds a before/after comparison table, so you can see the size trade-off before you download.
Yes, you can set a target size and the tool aims for it at the best quality it can within that limit, instead of guessing between generic compression levels.
Yes, Compress PDF is free. Registered users get 10 ops/day and 50 ops/month at no cost. Guests can preview the tool; running it needs a free account.
Yes, completely. Compress PDF runs entirely inside your browser — your files and data are never sent to any external server and never leave your device.
Yes, the tool is fully responsive and works smoothly on all devices — mobile, tablet, and desktop. You can also install Zayenha Tools as an app on your device.
Only an initial connection is needed to load the page. After that, all data processing runs entirely on your device without requiring a continuous connection.