Compress PDF Free | Reduce PDF Size Without Quality Loss - Adawix
Upload a PDF and reduce its size quickly — all processing happens locally in your browser.
Drop a PDF file here
Single PDF file — max 50 MB
How to Use
Upload Your PDF
Upload the large PDF file whose size you want to reduce.
Choose Compression Level
Choose between light compression (high quality), medium, or heavy compression (smallest size).
Click Compress PDF
Click the button and the size savings percentage appears after processing.
Download the Compressed File
Download the compressed file, which is significantly smaller while remaining readable.
What is the PDF Compressor?
Adawix PDF Compressor reduces the size of large PDF files to make them easier to share by email or upload to platforms with file-size limits. The tool works in two modes: Cleanup re-saves the file after stripping unnecessary data while keeping text searchable, and Deep Compression converts each page to a JPEG image for maximum size reduction (ideal for scanned documents).
All processing happens directly in your browser using the open-source pdf-lib and pdf.js libraries — your files are never uploaded to any server. Suitable for students, professionals, and lawyers handling sensitive documents. Completely free with no usage limits. For more productivity, also try: split large files first, Merge PDF, or detailed PDF compression guide.
PDF file size mainly comes from three sources: high-resolution embedded images, fully embedded fonts, and surplus metadata. "Purify" mode removes unnecessary layers and bookmarks, while "Deep Compress" converts each page to a JPEG image for maximum reduction.
Best compression results come with documents containing high-resolution photographic images. Text-only documents or engineering diagrams may not shrink much because their original size is already small.
Need to organize your compressed files? PDF Merger combines multiple compressed files into one document, and PDF Page Extractor lets you pull out specific pages before compressing.
هل تريد إرسال ملف PDF عبر واتساب؟ راجع دليل ضغط PDF للواتساب للإعدادات المثلى للإرسال الفوري.
Who Benefits from PDF Compression?
Employees and Business Owners
Many email platforms and sharing systems impose file size limits. Compress your presentations and reports to ensure they arrive without being rejected.
Students and Researchers
Academic submission platforms and scientific journals often cap file sizes. Compress your research and theses before uploading without compromising content.
Store Owners and E-commerce
Product catalogs and price lists are uploaded to websites daily. Smaller sizes mean faster loading and a better user experience.
Content Managers and Webmasters
Compress files before uploading to websites or government service portals with strict file size requirements.
Tips for Best Compression Results
Choose Compression Mode by Use Case
Purify is suitable for text documents that need to remain searchable. Deep Compress is ideal for scanned documents or presentations containing images.
Always Keep the Original
Deep Compress converts pages to images — you cannot go back to editable text afterward. Save the original before compressing.
Compress Before Merging
If you are going to merge multiple PDFs, compress each file individually first then merge them. This works better than compressing the large merged file afterward.
Check Searchability After Compression
After Deep Compress, open the file and try Ctrl+F to search. If it does not work, the file has become pure images with no searchable text.
Purify for Text-Only Documents
For documents containing only text and no images (like contracts or reports), Purify mode gives reasonable compression while preserving all text features.