Compress PDF
Shrink heavy PDF files so they meet strict file size limits for email attachments and official government portal submissions.
Drop your PDF documents here
Or click to browse on your device. You can select multiple contracts or invoices at once.
How to compress PDF files online and reduce file size in seconds
Scanned documents, multi-page contracts, and portfolios with images often weigh 10 MB or more. Heavy PDF files frequently get rejected by email servers (Gmail and Outlook cap attachments around 25 MB) and government or university portals that enforce strict 2 MB or 5 MB upload limits.
With this free online PDF compressor, you can significantly shrink document file sizes in seconds. The engine optimizes embedded graphics and removes redundant data streams while preserving the sharp readability of text, invoice numbers, and digital signatures.
Before and after comparison
Check the difference in file size, visual quality, and speed.
12.4 MB
Heavy document produced by scanners or graphic exports
- •Rejected by official government portals and job boards.
- •Difficult to send as an email attachment.
- •Slow to download and open on mobile devices.
1.2 MB
Crisp text and 100% legible numbers and tables
- ✓Accepted instantly by government portals, universities, and job forms.
- ✓Sends and downloads immediately via email and messaging apps.
- ✓Processed 100% locally with zero cloud uploads or data leaks.
When you will need to compress a PDF
Government portals, job applications & universities
Reduce file sizes for resumes, payslips, or diplomas to comply with strict 2 MB or 5 MB submission limits.
Send contracts and invoices via email
Prevent bounce-backs and ensure commercial proposals and invoices arrive quickly in your client inbox.
Save storage space on your device
Cut down on the disk space occupied by scanned books, receipts, and study materials on your computer or phone.
How does PDF compression reduce file size?
The compressor inspects the internal PDF structure to strip redundant overhead and optimize embedded images:
- •Excessive resolution of scanned images within the document.
- •Hidden revision history and unnecessary metadata.
- •Duplicated embedded fonts and redundant binary objects.
- ✓Complete sharpness and readability of all words and signatures.
- ✓Clickable web links and document bookmark hierarchy.
- ✓The exact page order and formatting of your document.
Frequently asked questions about compressing PDFs
Drop your PDF file into the box above. The compressor automatically applies the optimal balance to reduce file size while keeping text sharp and legible.
No. Text formatting, tables, and numerical digits remain in their exact original layout and vector typography. Only heavy graphic assets are compressed.
Completely safe. All processing runs entirely inside your browser memory. Your documents never touch external servers or cloud storage.