Compression results depend on your PDF's content. Image-heavy PDFs typically see 40–80% size reduction. Text-only PDFs may see less. The Low quality setting preserves the best visual quality, while High gives the smallest file size.

Is my PDF uploaded to a server?

Never. All compression happens entirely in your browser using JavaScript and the Canvas API. Your file never leaves your device, and no data is sent to any server.

Will the text in my PDF still be selectable after compression?

Our compression works by rendering each page as a high-quality image and rebuilding the PDF. This process reduces file size significantly, but text will appear as images and won't be selectable. This is standard behavior for most online PDF compressors.

What quality setting should I choose?

Use Low for documents that need to look great for printing or professional use. Use Medium for everyday sharing via email or web. Use High when file size is the priority and slight quality reduction is acceptable, such as for archiving or mobile previews.