Compress PDF to 1 MB
Get your PDF under 1 MB — automatically.
🔒 Everything above runs on your device — your file is never uploaded anywhere.
Compress PDF to 1 MB reduces your document to one megabyte or less, a common limit for email and web forms, without uploading it anywhere.
One megabyte is a widely used ceiling for form attachments and for some email or messaging systems. It leaves room for good quality: multi-page scans, brochures and reports can usually be brought under it with text and pictures still clear. The tool stops at the gentlest setting that fits.
The tool rebuilds each page as a compressed image and steps the quality and resolution down until the whole file fits under the limit, then stops at the first result that fits, so you keep as much quality as possible. Because pages become images, the text in the compressed file cannot be selected. Keep your original for that.
How it works
- 1Upload your PDF.
- 2Click Compress to 1 MB. The tool tries progressively stronger compression until it fits.
- 3Download the smaller PDF.
Frequently asked questions
How do I compress a PDF to under 1 MB?+
Upload it here and press Compress to 1 MB. The tool lowers image quality and resolution step by step until the file is under 1 MB, then gives you the result.
Will quality drop a lot at 1 MB?+
Not usually. 1 MB gives the compressor plenty of room, so most documents remain sharp.
Is my PDF uploaded?+
No. Compression runs in your browser and the file never leaves your device.
What if it cannot reach the limit?+
Very long or dense documents may not fit. You will be told, and given the smallest readable version. Splitting the PDF into two parts first usually solves it.