PDF Compressor
Open a PDF and compress it locally. Embedded images are re-encoded and downsampled while text, links and vector graphics stay exactly as they are; the document structure is cleaned and recompressed. Nothing is uploaded.
1. PDF & level
localDrop a PDF here
or click to browse
2. Result
—About PDF Compressor
The PDF Compressor optimizes a document locally, rasterizing image-heavy pages at a lower resolution to cut size or restructuring text PDFs, and shows the original size, compressed size, and estimated saving. It is honest about what browser-based compression can and cannot achieve.
Large PDFs are awkward to email and upload. Compressing locally trims them where possible while keeping the document private, with realistic numbers rather than inflated promises.
Step by step
- Open the PDF you want to compress.
- Choose a compression setting; a stronger one rasterizes image-heavy pages at a lower resolution.
- Run the optimization.
- Compare the original size, compressed size, and saving estimate.
- Download the smaller PDF if the trade-off suits you.
What it offers
- Optimization tuned for image-heavy or text PDFs
- Original, compressed, and saving figures
- Adjustable compression strength
- Compression performed in the browser
Tips for best results
- Expect big savings on image-heavy PDFs and little on files that are already mostly text.
- Rasterizing pages reduces size but turns selectable text into an image, so keep a text copy if you need search.
- Compare the compressed preview against the original before replacing your file.
Why people use it
Smaller files
Trim PDFs to fit email and upload limits.
Clear numbers
See the before, after, and estimated saving.
Honest results
Tells you when little can be saved rather than pretending.
Private
The document is optimized on your device.
Common questions
This runs entirely in your browser
No file or text you enter here is uploaded. Encoding and decoding happen on your device using native browser APIs — close the tab and nothing remains on a server.