Compress PDF
Reduce your PDF file size while maintaining good quality. 100% Client-side & Secure.
Drop your images here
Support for PDF. Drag & drop or click to browse.
How to Compress a PDF
Shrink your PDF size in just a few simple steps.
Upload Your PDF
Drag and drop your PDF file or click to browse. The file is loaded locally in your browser for processing.
Choose Compression Level
Select Recommended, Extreme, Less, or Custom. You can control image quality or even target a specific file size.
Download the Compressed PDF
Once processing is complete, download your smaller PDF instantly. No uploads, no waiting, no account required.
Compress PDF Online
Reduce the size of your PDF files directly in your browser. This tool works entirely client-side, meaning your files never leave your device. Choose a compression level, preview the size reduction, and download a lighter PDF in minutes.
What Does the Compress PDF Tool Do?
This tool reduces PDF file size by converting each page into optimized images and rebuilding the document with efficient compression settings. The result is a significantly smaller PDF that’s easier to upload, share, or store.
Because the compression happens entirely inside your browser, your files remain private and are never uploaded to a server.
Why Use the Pixellize Compress PDF Tool?
Many online PDF compressors require file uploads, impose limits, or watermark results. Pixellize focuses on simplicity, speed, and privacy.
Key Benefits:
- 100% client-side: Your PDF never leaves your device.
- Multiple compression levels: Balance quality and file size easily.
- Custom controls: Adjust quality percentage or target size.
- No sign-up required: Use instantly without accounts.
- Clear size comparison: See original vs compressed size.
- Free to use: No hidden limits or paywalls.
Important Things to Know Before Compressing
To achieve strong compression, this tool converts PDF pages into images. This means:
- Text inside the compressed PDF will no longer be selectable or searchable
- Best suited for scanned documents, image-heavy PDFs, or sharing purposes
- Not ideal if you need editable or searchable text
If your goal is simply to reduce file size for email, uploads, or storage, this approach works reliably and efficiently.
Compress PDFs Safely and Instantly
Upload your PDF, choose a compression level, and download a smaller file in minutes. No installs, no accounts, and complete privacy — just a practical tool that does one job well.
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Frequently Asked Questions
What does the Compress PDF tool do?
The Compress PDF tool reduces the file size of your PDF by converting each page into optimized images and rebuilding the document. This helps make large PDFs easier to upload, share, or store.
Is this PDF compression tool free to use?
Yes. The tool is completely free and does not require any sign-up, login, or subscription.
Are my PDF files uploaded to a server?
No. All compression happens directly in your browser. Your PDF never leaves your device, making the process private and secure.
Will the text in my PDF remain selectable after compression?
No. Since the tool converts PDF pages into images for compression, the resulting PDF will not have selectable or searchable text.
When should I use this PDF compression method?
This tool works best for scanned documents, image-heavy PDFs, or files meant for sharing where smaller size matters more than text selection.
Can I control the compression quality?
Yes. You can choose from preset options like Recommended, Less, or Extreme, or use Custom mode to adjust image quality or target a specific file size.
What does “Target Size” compression mean?
Target Size mode lets you enter an approximate file size in KB. The tool adjusts image quality automatically to try to reach that size as closely as possible.