Compress PDF Files
or click to upload
Make scanned and image-heavy PDFs much smaller so they are easy to email and upload. Choose how strong the compression is. Your file is processed in your browser and never uploaded.
- No watermarks
- Fast results
- 100 % in-browser
- Zero sign-up
How It Works
Use Compress PDF in three quick steps.
Upload your PDF
Drag and drop a PDF or browse your device.
Choose the level
Pick light, balanced or strong compression.
Download the smaller PDF
Save the compressed file to your device.
What is an PDF compressor?
Large PDFs are slow to email, upload and open. This compressor rebuilds the document from an image of each page at a lower resolution and JPEG quality, which can shrink scanned or image-heavy PDFs dramatically. It works best on scans, photo albums and presentations full of big pictures.
Keep a copy of the original if you need selectable text. PDFs that are mostly text are usually small already.
Three levels
Light keeps pages sharp, strong gives the smallest file. Start with balanced.
Best for scans and images
Documents that are mostly pictures often shrink by well over half.
Text becomes part of the picture
After compression, text can no longer be selected, copied or searched, because each page is saved as an image.
Never returns a bigger file
If compression would not make the file smaller you are told so, instead of getting a larger download.
Convert PDF Files and File Formats
Find the perfect online tool to combine PDF files, compress documents, and handle your daily workflow effortlessly.
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Why Use Our Compress PDF Tool
Fast, free and simple, with nothing to install.
Fast Results
Shrink a PDF in seconds. Compression runs on your device, so there is no upload wait.
Private by Design
Your files never leave your browser. Nothing is uploaded to a server and nothing is stored.
Works Everywhere
Use it on desktop, tablet or phone. There is no software to install and no extension needed.
Completely Free
No account, no watermark and no limit on how many files you process.
Frequently Asked Questions
Common questions about Compress PDF.
Upload the PDF, choose a compression level, press Compress PDF and download the smaller file.
It depends on the content. Scans and image-heavy files can shrink a lot, while mostly-text PDFs are usually small already and may not shrink.
No. Compression turns each page into an image, so text is not selectable or searchable afterwards.
Start with Balanced. Use Light if pages look too soft, or Strong when you need the smallest possible file.
If rebuilding the file would not make it smaller, the tool tells you instead of giving you a larger file. Try the Strong level.
No. Everything runs in your browser.