Compress PDF
Reduce your PDF file size locally in your browser—no uploads, no data stored.
Drop PDF here or click to browse
Supports: PDF files
Your file is processed in your browser. No uploads, no data stored.
How this tool works
Reduce PDF file size for Gmail, Outlook, or form upload limits using our free browser-based compressor. No software to install and no uploads to our servers—your document is processed locally. The compressor optimizes embedded images and removes unnecessary metadata to reduce overall file size while keeping text and layout intact.
Common use cases
Use case 1
Reduce PDF file size for Gmail, Outlook, and other email attachment limits (e.g. 25MB).
Use case 2
Shrink scanned documents or image-heavy PDFs for faster sharing and storage.
Use case 3
Meet file size limits for job applications, academic submissions, or government forms.
Use case 4
Save storage when archiving many PDFs or backing up documents.
Step-by-step guide
Step 1
Upload your PDF by clicking or dragging the file into the drop zone.
Step 2
Choose your compression level. Higher compression reduces size more but may slightly reduce quality.
Step 3
Click "Compress PDF" and wait for processing. It runs in your browser.
Step 4
Download the compressed file. Your original is never modified.
Frequently asked questions
Do I need to install Adobe Acrobat to compress PDFs?
No. Our tool works online in your browser without installing any software. You don’t need Adobe Acrobat, paid PDF software, or desktop apps. Just open the page, upload your PDF, and download the compressed version. Everything runs in the browser for free.
Will compressing my PDF reduce quality?
Compression can slightly reduce image or graphic quality inside the PDF. For text-heavy PDFs the effect is minimal and text remains sharp. We keep a balance between file size and readability so your document stays usable for printing, sharing, or archiving.
Is PDF compression free and private?
Yes. Our PDF compressor is free and runs entirely in your browser. Your file is not uploaded to our servers—it is processed locally on your device. We don’t store, copy, or share your documents. This makes it safe for sensitive files like tax forms or contracts.
What are the limitations of browser-based PDF compression?
Very large PDFs (e.g. hundreds of pages or very high-resolution scans) may take longer to process because everything runs on your device’s memory. If you notice slowdowns, try compressing in smaller batches or on a desktop for best performance.