Compress PDF Documents Online,
Free & Secure
Compress PDFs with four quality presets and a live size estimate while keeping text and fonts intact. Free, fast, and no account required.
Select a PDF file
tap anywhere here to choose from your device
Up to 100 MB free — 200 MB with a free account, 1 GB with Pro · Accepted: .pdf
By uploading a file, you agree to our Terms of Use and acknowledge our Privacy Policy.
How to compress a PDF file in 3 quick steps
Compress PDFs online without installing software. Use the tool from any device or browser.
Upload your PDF file
Drag and drop your PDF or click to select a file. The tool opens a before-and-after view so you can compare the results without creating an account.
Select a quality preset
Choose from four presets: High quality, Balanced, Strong, or Maximum. The tool updates the estimated output size and savings with each selection.
Download your compressed PDF
Click “Compress PDF” to process your file, then download the reduced-size PDF in seconds while keeping the original content intact.
Everything you need to reduce PDF size
Shrink PDFs significantly with clear previews, fast processing, secure file handling, and no cost.
Reduce PDF file size
Optimize images and remove duplicate resources or unnecessary metadata to make your PDF smaller. Keep the original document content intact during compression.
Choose your compression level
Choose your preferred compression preset from High Quality, Balanced, Strong, or Maximum. Each option provides a different balance of file size reduction and quality.
Preserve text and fonts
Optimize raster images while keeping vector text, fonts, and the document layout unchanged. Text and font elements remain intact throughout compression.
Keep digital signatures
Keep digital signatures intact when compressing signed PDFs. Signed and certified documents retain their validity after compression.
Preview compression results
View the original and estimated compressed file sizes side by side before downloading. Check the expected reduction and savings before creating the final PDF.
Protect your PDF files
Upload and compress PDFs on isolated servers with secure processing. Files are automatically deleted within 60 minutes after processing and are not shared with third parties.
Choose your PDF compression plan
Compress without an account, get increased limits with a free account, or use Pro for frequent, heavy workloads.
What Users Think of PDF Awesome Worldwide
See real user experiences and discover what PDF Awesome users are saying on Trustpilot.
Used PDF Awesome to compress a pretty large PDF and it worked really well. The file size dropped a lot without making the pages look blurry or low quality. Quick, simple, and did exactly what I needed.
Armen Khachatryan
GB · September 9, 2026
Excellent product I was surprised when I saw that I can make changes,edit on my PDF files easily within seconds and free highly recommend
Narek Antabyan
AM · September 8, 2026
This tool is really awesome as its name. Thank you I'm excited.
Drawde
AM · June 6, 2025
Common Questions About PDF Compression
Find helpful information about compressing and reducing PDF file sizes online.
How can I reduce PDF file size without losing quality?
Add your PDF to the compressor and choose “High quality” or “Balanced” from the available presets. These options optimize internal data, slightly downsample high-DPI images, and remove invisible metadata while maintaining the document’s visual quality for screen and print. If you need to make changes before compression, you can edit the PDF first.
How large of a PDF can I compress online?
You can compress files up to 100 MB without an account. Free users can process PDFs up to 200 MB. In addition, Pro subscribers can compress files up to 1 GB per task, including high-resolution design files, scanned archives, and technical drawings.
What compression levels are available for PDFs?
PDF Awesome provides four compression options: High quality, Balanced, Strong, and Maximum. High quality makes light optimizations for near-original quality, Balanced works for most files, Strong provides greater size reduction with some quality trade-off, and Maximum applies more aggressive image optimization for the smallest output. A live size estimate on the board shows the expected result for each preset.
Does PDF compression affect text quality or fonts?
No. Compression optimizes only the raster images in the document, while vector text and fonts remain unchanged. Font embedding, glyph shapes, and text content are preserved. So you can still extract text from the compressed PDF.
Is it possible to compress scanned PDF documents?
Yes. Since scanned PDFs primarily contain image data, they can often be reduced substantially with compression. With the Balanced preset, scanned files can often become 60–80% smaller while maintaining visual quality at normal screen and print sizes.
Will my digital signature remain after PDF compression?
Yes. Digital signatures are preserved during compression because they are stored separately from the image data being optimized. Signed and certified PDFs retain their signature validity in the compressed output.
Is it safe to compress a PDF online?
Yes. PDF Awesome uses 256-bit SSL encryption for uploads, processes files on isolated servers, and automatically deletes them within 60 minutes. The service is GDPR compliant and built aligned with ISO/IEC 27001 security principles, with no employee or third party accessing your content. You can also use Protect if you need to secure a PDF.
Can I compress multiple PDF files together?
Yes. Upload multiple PDFs to the board and process them together in a single task, then download the results as one ZIP file. The limit is 2 files without an account, 5 with a free account, and 50 with Pro. A batch counts as one task toward your daily limit, which is 10 tasks per day for free accounts.
Will PDF compression change the original document?
No. PDF compression reduces the file size without deleting pages or changing their order. The compressed PDF retains the original page count and document structure.
Can I divide a compressed PDF into separate files?
Yes. After downloading the compressed PDF, you can use split to divide it by page range or separate it into individual sections. This lets you create separate PDF files from the compressed document.
Related tools
More ways to work with your PDF files.
Merge PDF
Combine multiple PDFs into one document
Split PDF
Extract pages or divide into separate files
Edit PDF
Edit text, images, and annotations inline
PDF to Word
Convert PDF to editable Word document
Protect PDF
Password-protect with permission controls
JPG to PDF
Combine images into a single PDF
Compress PDFs — free, no account needed
Start shrinking files right away at no cost. Need bigger files or unlimited daily tasks? Pro raises the limit to 1 GB per task.