A smaller PDF, with a trade-off
UtilityLake renders each page and rebuilds the document using JPEG images. Quality and render scale let you choose the balance between file size and visual detail.
Each page is rendered and encoded again before the new PDF is created.
Compress a PDF in four steps
- 01
Choose the PDF you want to reduce.
- 02
Set JPEG quality for the page images.
- 03
Adjust render scale if needed.
- 04
Run the tool and download compressed.pdf.
Compression changes how the pages are stored
Text and vector graphics in the original PDF become part of rasterized page images. Lower quality or scale can reduce file size, but may also make fine text and graphics less sharp.
Compression happens on your device
Rendering and PDF generation happen in the browser, so the selected document does not need to be uploaded to UtilityLake.
Before you compress
Will the compressed PDF always be smaller?
Not necessarily. A PDF that is already highly optimized may already be very efficient before rasterization.
What does JPEG quality change?
Lower quality usually reduces file size more, but can introduce visible compression artifacts.
What does render scale change?
It changes the resolution used when each page is turned into an image. Lower scale means fewer pixels and potentially a smaller file.