PDF Compressor
Reduce the size of scanned or image-heavy PDFs with adjustable compression levels directly in your browser. Free to use online with no sign-up.
Choose strong, balanced or higher-quality compression. Pages are rasterized and recompressed locally, which is especially useful for scanned PDFs.
Formula
Each page is rendered as an optimized JPEG image and rebuilt into a new PDF. Stronger settings use lower image resolution and JPEG quality.
Example
A large scanned document can often be reduced substantially by using Balanced or Strong compression.
Frequently asked questions
- Will searchable text remain searchable?
- No. This browser-based compressor rasterizes pages, so selectable text, forms and links are flattened in the compressed copy.
- Will every PDF become smaller?
- Not always. PDFs that are already highly optimized or mostly vector content can stay similar in size or become larger. Image-heavy and scanned PDFs usually benefit most.