Compress PDF
Compress PDF files for email attachments, college uploads, and form portals while keeping them readable.
Your files and inputs are processed in your browser. No server upload is needed.
Free Online PDF Tool
Compress PDF Online
Prepare a PDF for an upload limit or email attachment without sending it to a server. Choose quality presets for image-heavy files, or enter a target such as 100, 200, or 500 KB. Targets are not guaranteed: the tool shows the actual size and keeps the smaller original when appropriate.
How to Compress PDF File Size
Step 1
Upload the PDF file you want to compress.
Step 2
Choose a quality preset, or enter a KB target and select structure-preserving or explicitly accepted scan flattening.
Step 3
Preview the reduced file size and download the compressed PDF.
Step 4
Repeat with different files when you need to reduce PDF size online again.
Why Use Our PDF Compressor
Compress PDF online for common size limits like email and form uploads.
Reduce PDF file size free without a long signup flow.
Make PDF smaller for office, student, and application workflows.
Keep the process fast and browser-based for better privacy.
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FAQ
Frequently Asked Questions
How to compress PDF file size?
Upload the PDF, run the compression step, and download the smaller version. This is useful when you need to fit portal or email size limits.
How to reduce PDF size online?
Use the compress PDF tool to shrink the file and download the optimized copy after processing finishes.
How to compress PDF without losing quality?
Repacking objects avoids rasterizing pages but may not reduce size enough. Quality presets and scan mode flatten pages and remove selectable text, links, forms, and accessibility structure. Any rewrite can invalidate digital signatures; keep signed originals and inspect the result.
How to compress PDF to 1MB?
Select the 1,000 KB preset under target size, choose a method, and try compression. The same control supports 100, 200, and 500 KB or a custom limit. If it cannot reach the target, it says so and offers the best available file without claiming it fits.
How to make PDF smaller?
The easiest method is to use a PDF compressor that rewrites the document for a lighter download and sharing size.