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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.

Free5 tasks/day, no account — 10/day & bigger files with a free account
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Select a PDF file

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Up to 100 MB free — 200 MB with a free account, 1 GB with Pro  ·  Accepted: .pdf

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256-bit SSL encryption
Files deleted in 60 minutes
GDPR compliant
No sign-up required

How to compress a PDF file in 3 quick steps

Compress PDFs online without installing software. Use the tool from any device or browser.

STEP 01

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.

STEP 02

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.

STEP 03

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.

No account
Free
Pro
Number of daily tasks
5
10
Unlimited
Max file size per task
100 MB
200 MB
1 GB
Number of files allowed per task
Up to 2
Up to 5
Up to 50
All four quality presets
Priority processing

What Users Think of PDF Awesome Worldwide

See real user experiences and discover what PDF Awesome users are saying on Trustpilot.

ExcellentTrustScore 4.5 out of 5Trustpilot
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.

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