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Compress PDF

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Reduce document size with controlled quality.

Stateless Cloud Worker

Recommended Workflow

Reduce PDF file size for fast email delivery and upload forms while preserving readable text.

How to Use Online PDF Compressor

Compress large scanned documents, portfolios, and PDF presentations for smooth email delivery, web uploads, and efficient storage.

1

Select Your PDF

Drag and drop the heavy PDF file you need to shrink into the dropzone.

2

Choose Compression Preset

Select Balanced (recommended for emails and web), Maximum (smallest file size), or Conservative (highest print quality).

3

Download Compressed File

Click 'Compress PDF'. Review the reduced size in megabytes and download your lightweight document instantly.

Frequently Asked Questions

Will compressing my PDF make the text blurry?
No. Vector text and system fonts are not rasterized during compression. Only embedded raster images (like photos or scans) are optimized, keeping all text razor sharp.
What is the maximum file size I can compress?
Guest users can compress PDFs up to 25MB for free. Registered workspace accounts can compress large documents up to 100MB.
Which compression preset should I choose?
Balanced is ideal for 90% of use cases (reports, invoices, homework). Maximum is best when you need to meet strict portal limits (e.g. under 2MB). Conservative is recommended for high-resolution graphics meant for printing.
Are my uploaded files stored on your servers?
No. When compressing as a guest, files are processed through stateless streaming endpoints and immediately purged from server memory upon delivery.

Related Document Tools

Logical next steps or alternative workflows for your document.

Merge PDF

Combine PDFs into one ordered document.

256

Protect PDF

Apply password and permission controls.

PDF

PDF to JPG

Convert PDF pages into high-resolution JPG images with selectable DPI.

Source PDF

Choose from Device

None selected
FB / 1111 1011

Select or drop a PDF to compress

Stateless streaming optimization. File is processed in server memory and purged immediately.

Stateless streaming optimization. File is processed in server memory and purged immediately.

Select PDF from Google Drive
or drop PDF here
Compression level

Choose Preset

Stateless Privacy Guarantee: Files uploaded as a guest are optimized in streaming RAM through qpdf and immediately purged. We never train AI models or retain your files.
Output

Save compressed PDF

Source
None selected
Input size
—
Preset
Balanced
Destination
Instant Download
Mode
Stateless Cloud Worker
Your file is processed in memory and purged immediately upon delivery.