Reduce your PDF file size while preserving the best possible quality. Choose your compression level and download instantly.
FREE
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Max file size: 80 MB · for higher limits
Drop a PDF here or browse
One PDF file · Max 80 MB
Compress PDF is a free, browser-based tool that reduces the file size of your PDF documents while preserving as much visual quality as possible. Large PDFs are a constant frustration — email providers reject attachments over a few megabytes, web portals enforce strict upload limits, cloud storage fills up quickly, and sharing a 50 MB scan is impractical. This tool solves all of that in a few seconds without uploading your file anywhere.
Choose from three quality presets to match your needs: Maximum Compression delivers the smallest possible file, ideal for archiving or sending through messaging apps; Balanced gives a practical middle ground that works well for most business documents; Minimum Compression trims file size while keeping images and text nearly identical to the original — best for client-facing documents where quality matters.
After compressing, the tool shows you exactly how many bytes were saved and the percentage reduction, so you can decide whether the result meets your needs before downloading. If the compressed file would be larger than the original — which can happen with already-optimised PDFs — the tool warns you instead of forcing a pointless download.
Because everything runs locally in your browser using WebAssembly, your documents are never uploaded to any server. This makes the tool safe for confidential reports, financial statements, legal documents, medical records, and any sensitive material. There is nothing to install and no account required for standard file sizes.
Upload your PDF using the drop zone or file picker. Select your preferred compression quality: Maximum Compression for the smallest file, Balanced for a practical middle ground, or Minimum Compression to preserve near-original quality. Click "Compress PDF" and the tool processes the file locally in your browser using WebAssembly. A before/after size comparison and percentage saved is displayed. If the file is successfully compressed, click download. If the tool detects that the compressed version would be larger than the original, it shows a warning instead of downloading.
Upload your PDF
Drag your PDF file onto the upload area or click to browse your files. The file is read entirely in your browser — nothing is sent to any server.
Choose a quality preset
Select Maximum Compression for the smallest file, Balanced for a good trade-off, or Minimum Compression to keep quality as high as possible.
Compress the PDF
Click "Compress PDF". The tool processes your file using WebAssembly in your browser.
Review the result
The before/after file sizes and percentage saved are shown. If the compressed file would be larger than the original, a warning is shown instead.
Download
Click the download button to save the smaller PDF directly to your device.
Email Attachments
Reduce a large PDF report below your email provider's attachment limit without losing readability.
Web Form Uploads
Many government, HR, and education portals cap uploads at 2–5 MB. Compress your document to fit.
Cloud Storage Archiving
Reduce storage used by archived invoices, contracts, and scanned records to save space and costs.
Business Documents
Compress proposals, reports, and presentations before sending to clients or sharing internally.
Assignment Submissions
Many academic platforms cap submission sizes. Compress your PDF to meet university upload requirements.
Mobile Sharing
Large PDFs are slow to open on mobile. Compress first for smoother sharing via WhatsApp, Telegram, or email apps.
Three Compression Levels
Choose Maximum, Balanced, or Minimum compression to match your needs — not a one-size-fits-all setting.
Shows Exact Savings Before Download
Before you download anything, the tool shows the original size, compressed size, and exact percentage reduction.
Never Downloads a Larger File
If compression makes the file bigger (common with already-optimised PDFs), the tool warns you instead of wasting your time.
100% Private — No Uploads
Everything runs in your browser with WebAssembly. Your documents never touch our servers — safe for confidential files.
Re-Compress Without Re-Uploading
Switch quality presets and recompress instantly without re-selecting your file. Each pass reads the original fresh.
Free to Start — Sign Up for More
Use free with no account for files up to 40 MB. Sign up free to raise your limit to 80 MB, or upgrade to Pro for 250 MB per file.
Also Known As
Merge PDF
Combine multiple PDF files into one. Drag to set the page order you want.
Split PDF
Separate one PDF into multiple files — by page range or every page.
Remove Pages
Select and delete specific pages from your PDF document.
Extract Pages
Extract selected pages from a PDF and save them as a new PDF file.
Organize PDF
Reorder, rotate and delete pages inside a PDF — all in one place.
Rotate PDF
Rotate one or all pages of your PDF to the correct orientation.
Trusted Worldwide
iLoveDocsTools is used by students, professionals, and businesses across the United States, Canada, United Kingdom, Australia, India, and more than 100 other countries. All tools are browser-based and process files privately — your files never leave your device. Free to use, with Pro plans for unlimited access.
All processing happens directly in your browser. Your documents are never sent to any server — complete privacy guaranteed for users in the USA, Canada, UK, and worldwide.
Every tool on iLoveDocsTools is free to use. Need more? Upgrade to Pro for unlimited usage, priority access, and no daily limits. Trusted by students, freelancers, and teams across North America and Europe.
Whether you are on a Mac, Windows PC, iPhone, or Android in New York, Toronto, London, or Sydney — our tools work instantly in any modern browser.
Looking for free PDF tools in the USA? Free document converters in Canada? Online PDF editors in the UK or Australia? iLoveDocsTools offers 70+ free tools — merge PDF, split PDF, compress PDF, convert Word to PDF, Excel to PDF, JPG to PDF, and many more — all free, all instant, all private. No watermarks. No file size limits. Just free tools that work.