Compress PDF Online for Free
Shrink your PDF file size in three clicks — no software, no account, no waiting. Choose your compression level (Low, Medium, or High) and download a smaller PDF that's ready for email, upload, or storage.
Drop your PDF file here
Select a PDF to compress
Max 100 MB per file
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Why Use This Tool?
How to Compress PDF Online for Free
Upload PDF
Drop your PDF file into the upload zone or click to browse.
Choose Level
Select Low, Medium, or High compression based on your quality vs. size preference.
Compress & Download
Hit compress and download your smaller PDF. See the before/after size comparison.
Frequently Asked Questions
It depends on the original PDF. Text-heavy PDFs may see 10-30% reduction. PDFs with embedded images can shrink by 40-70% on high compression.
No. Our compressor optimizes the PDF structure and metadata. Text remains sharp and fully selectable after compression.
Low is ideal for preserving maximum quality. Medium balances size and quality for most uses. High achieves the smallest file size, best for archiving.
Yes, but gains will be minimal. If the file is already optimized, the output may be the same size as the input — we warn you when this happens.
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