1. Upload a PDF file
Choose one PDF from your device with click or drag-and-drop. Files up to 50MB are accepted.
Compress your PDF for free with the best Kompres PDF. Reduce PDF file size by up to 90% while maintaining high quality. Online PDF compression without watermark and without registration.
Compress your PDF files to reduce their size while maintaining quality.
Select PDF File or drag and drop file here
Maximum file size: 50MB
Use our image compressor to shrink JPG, PNG, and WebP files for email, web uploads, and mobile sharing.
Open Image CompressorPremium features that make Kompres PDF the best choice for your needs
Use completely free with no hidden fees
Your files are safe with encryption and privacy protection
Fast compression with high quality results
Save storage space by up to 90%
Share files easily via email or social media
Smaller files meet email limitations
Kompres is built for people who need to reduce PDF size quickly without changing workflow.
If you regularly send documents by email, upload reports to portals, or manage PDF archives, file size matters. Kompres is a practical reduce PDF size tool that keeps your documents easier to share and store.
Our goal is simple: provide a free compressor that is clear to use, transparent about compression level choices, and useful for real document workflows instead of one-click marketing promises.
Choose one PDF from your device with click or drag-and-drop. Files up to 50MB are accepted.
Pick Low, Medium, High, or Very High based on whether you prioritize quality, balance, or maximum size reduction.
Kompres processes your file and shows original size, compressed size, and compression ratio so you can verify the outcome.
Save the reduced file and use it immediately for email attachments, uploads, and cloud storage.
This website provides complete publisher content for the PDF compression tool, including feature explanations, usage instructions, legal pages, and user guidance. We continuously update the content to keep Kompres useful, accurate, and policy-compliant.
Answers to common questions about PDF compression
PDF compression is the process of reducing the size of a PDF file without affecting the quality of its content. Online PDF compression helps you save storage space and easily share files.
Simply upload your PDF file, select the desired compression level, and click Compress PDF. The PDF compression process will be performed automatically in a few seconds.
Yes! This online PDF compression is completely free with no usage limits. No watermark, no registration, and no hidden fees.
PDF compression can reduce file size by up to 90% depending on the original content and selected compression level. Quality remains intact even though the size is reduced.