Compress large PDF documents online to reduce file size while keeping text readable and formatting intact, making it easier to upload, share, and email documents.
Compress large PDF documents online to reduce file size while keeping text readable and formatting intact, making it easier to upload, share, and email documents.
PDF onlyFour steps. Batch-ready. Instant size estimate.
PDF documents can quickly become heavy in size, especially when they include high-resolution images, scanned pages, or complex graphics. A Compress PDF tool helps reduce the overall file size while keeping the document clear and readable. This makes it much easier to handle large files without losing important content.
Using a PDF compression tool is helpful when you need to upload documents to websites, send files through email, or store files on limited storage space. Smaller PDFs load faster, transfer quicker, and are more convenient to manage across devices.
Instead of editing the file manually, a compress PDF tool automatically optimizes the document. With just a quick upload, your file becomes lighter and easier to share while maintaining the original formatting and page structure.
Each compression level targets a different balance of file size and visual quality. Use this table to choose the best starting point for your use case.
| Level | Target DPI | Best For | Typical Reduction |
|---|---|---|---|
| Screen | 72 dpi | Email attachments, web embedding, internal sharing where file size is critical | 60–85% smaller than original |
| eBook | 150 dpi | Digital distribution, online forms, reports read on screen at normal zoom | 40–70% smaller than original |
| Printer | 300 dpi | Documents intended for desktop or office printing at standard paper sizes | 20–50% smaller than original |
| Prepress | 300 dpi | Commercial publishing, professional print workflows where colour accuracy is critical | 10–30% smaller than original |
Free, instant, and completely private. Drop a PDF, choose your level, download the result — no account ever needed.
No account · No upload · No data stored · Works offline