Compress PDF

Compress PDFs to a Target File Size

CipherForces PDF Compressor reduces PDF file sizes with a feature most tools lack: target file size. Set a maximum of 5MB and the compressor will get there. This is critical for email attachments (Gmail's 25MB limit, Outlook's 20MB limit) and upload portals with strict file size caps.

The compression runs entirely in your browser. Your PDFs are never uploaded to any server — an important detail when you're compressing contracts, financial statements, or medical records.

Common Use Cases

• Email attachments: Shrink large PDFs to fit under email size limits without splitting them into multiple messages.
• Upload portals: Government forms, university applications, and job portals often enforce 2MB or 5MB limits. Hit the exact target.
• Archiving: Reduce storage costs by compressing archived documents that don't need maximum quality.
• Sharing: Make large reports and presentations small enough to share via Slack, Teams, or Google Chat.

How It Compares

Adobe Acrobat Pro costs $240/year and requires a desktop install. Smallpdf and iLovePDF upload your files to their servers and limit free usage. CipherForces compresses PDFs locally in your browser with no file upload, no subscription, and no daily limits.

Key Features

• Target file size: Set an exact maximum (e.g., 5MB, 10MB) and the compressor hits it.
• Quality preservation: Intelligent compression reduces size while keeping text sharp and images clear.
• Batch compression: Compress multiple PDFs at once.
• No daily limits: Compress as many PDFs as you need, any size, any number of times.

Privacy: PDF compression is performed entirely in your browser. Your documents are never transmitted to any server.