Scanned handout
Large page imagesSmaller PDF
Check small text before attaching it to email.
PDF Compressor
Rebuild PDF pages at an adjustable image quality in your browser. Results vary, and compressed text may no longer be selectable.
Preparing private browser tool…
What to expect
Results vary by image density, scans, embedded assets, and the selected quality setting.
Photo-heavy report
High-resolution imagesReduced image quality
Stronger settings can create visible quality loss.
Mostly text PDF
Compact text contentModest reduction
Text-only files may not shrink much.
Verify how this tool processes files
Review our local-processing checks, documented limitations, and repeatable testing method.
How to reduce PDF file size
Use PDF Compressor when a document is too large for email, upload forms, or storage limits. Choose the lowest compression level that still keeps the document readable.
Steps
- Upload the PDF file.
- Select a compression level based on the target file size.
- Download the smaller PDF and inspect text and images before sending.
Privacy note
PDF compression happens in the browser, so your document is not uploaded to EaziApps servers.
Frequently asked questions
- How does browser PDF compression work?
- Each page is rendered to a canvas using pdf.js, then re-encoded as a JPEG at your chosen quality level. The new JPEGs are then rebuilt into a fresh PDF with pdf-lib. Everything runs client-side.
- What size reduction can I expect?
- Low: 70-90% smaller. Medium: 50-70%. High: 20-50%. Actual ratios depend on how image-heavy the original PDF is.
- Will text still be selectable?
- No. Because each page is rasterized to a JPEG, any original selectable text becomes part of the image. If text searchability matters, use a lossless compressor instead.
- Is my PDF uploaded?
- No. Everything happens in your browser. Files are never sent to a server.