Documents
Compress PDF
Reduce scanned or image-heavy PDF size with quality and DPI settings. No account required. Processing stays in your browser.
How it works
Choose your file, adjust the options and generate a copy. Processing happens on this device. Keep the original and inspect the output before sharing.
Are my documents uploaded to a server?
No. Libraries are served from this website and processing happens in your browser. Reloading discards work you have not downloaded.
What are the limits?
Hasta 300 páginas en total; separar y comprimir admiten hasta 100. La memoria disponible depende del dispositivo. Esta herramienta no incluye OCR, firma con certificado, edición de texto existente ni conversión fiel de archivos DOC antiguos.
Get a useful result
Choose resolution around what must remain readable: a receipt with small print needs more detail than a large heading. Compare the final size and zoom into the result before sending it. The compressed version consists of images and loses selectable text.
A practical example
For a scan, compare the 150, 110 and 72 DPI profiles. Lower resolution may reduce file size and readability. Choose the result that preserves the detail you need.
Why is my PDF not smaller?
An already optimized PDF or one containing mostly text may grow when converted to images. If there is no improvement, the original is offered; this does not mean pages were removed.