Reduce the size of scanned PDF files
This compressor renders each PDF page as an optimized JPEG and rebuilds the document. It is especially useful for scans and image-heavy PDFs where a smaller attachment matters more than selectable text.
How to use Compress PDF
- Choose one PDF.
- Select the balance between image quality and resolution.
- Compress the file and compare the downloaded size with the original.
Important quality and format trade-offs
Raster compression removes searchable text, links, forms and digital signatures. Text-first PDFs may become larger, so keep the original and use this tool mainly for scans or image collections.
Frequently asked questions
Why is the compressed PDF no smaller?
An already optimized or mostly text-based PDF may not benefit from raster compression.
Will text stay searchable?
No. Each page becomes an image. Run PDF OCR afterward if you need extracted text.
Which setting should I start with?
Balanced resolution and medium image quality suit most scanned documents.