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PDF → Smaller PDF
Compress PDF Files Online
Reduce a PDF for email, uploads, or sharing in your browser. Choose a compression level, manage metadata, and download a rewritten file without an account.
✓ Free to use✓ No login required✓ Download when ready
Browser conversion workspaceDownload starts automatically when ready
Upload a PDF to Compress PDF
or choose files from your device
✓ Start instantly in your browser. No account, subscription, or software installation is needed.
A simpler way to work
Compress PDF features
Keep the important choices visible, then move from source file to finished download without extra steps.
No account required
Open the page, add your file, and start working immediately. Your workflow does not depend on a profile.
Clear controls
Adjust compression level and object streams before you create the smaller pdf.
A clear finish
The result is prepared in the workspace and the browser starts the download when conversion completes.
How to use this tool
How to Compress PDF Online
When a PDF is too large for an email or upload limit, choose a profile that fits the destination, review the result, and keep the original until the smaller copy has passed your checks.
01
Add your source files
Drag files into the upload box or choose them from your device.
02
Arrange and set options
Reorder pages and choose the layout, quality, or page range you need.
03
Start the conversion
Click the main button once. The workspace shows progress while it prepares the result.
04
Download and continue
Your file downloads automatically, with a related tool ready for the next step.
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What Does Compress PDF Do?
PDF files can become difficult to email or upload when they contain large images, repeated metadata, or more detail than the destination needs. This browser workflow rewrites the document locally with a quality profile, so you can create a smaller copy while keeping the original available for comparison.
What browser compression changes
Light, Balanced, and Strong profiles reduce image payloads at different levels. Text and vector content should remain crisp, while photographs and scans may be resized or recompressed. Removing metadata can also reduce unnecessary document information, but it does not restore detail that was already missing from the source.
Choose a profile for the destination
Use Light when visual quality matters most, Balanced for ordinary email and sharing, and Strong when an upload limit is the priority. If the source is already optimized, the output may be similar in size or even slightly larger because the PDF has to be rewritten.
Review the smaller file
Open the downloaded PDF before sending it. Check small text, photographs, page count, transparency, and any signatures or fine lines that matter. Keep the original until the compressed copy opens correctly and meets the size and readability requirements of the service where it will be used.
01
Compression level
Select compression level based on the format, readability, or sharing requirements of the finished file.
02
Object streams
Select object streams based on the format, readability, or sharing requirements of the finished file.
03
Metadata
Select metadata based on the format, readability, or sharing requirements of the finished file.
FAQ
Compress PDF FAQ
Answers are visible on the page so people can understand the workflow before they upload.
Will compression make text blurry?
The output should use a quality preset rather than silently over-compressing. Text and vector content should stay crisp.