Optimize · Free Tool
Compress PDF Online
Reduce PDF size with browser-based raster compression. Processing is free. A free account is required only when you download the finished file.
Select files or drag & dropYour files are processed locally when this tool supports browser processing.
65%
This base-version compressor rasterizes pages. It can reduce size but may remove selectable text, links and vector quality. Advanced compression will move to the server version later.
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How to use Compress PDF
1. ChooseSelect the file you want to process.
2. ProcessAdjust the available settings and run the tool.
3. DownloadSave the generated result to your device.
About this tool
Reduce PDF size with browser-based raster compression. PDFzoid's base release prioritizes browser-side processing to reduce uploads and keep hosting requirements light. Some advanced conversions will use secure temporary server processing in a later version.
Frequently asked questions
Do I need an account?
You can open and process files without an account. A free PDFzoid account is required only to download the finished result.
Are my files stored?
Browser-side tools process files on your device. When server-based features are introduced, PDFzoid will clearly label them and use temporary storage with automatic deletion.