Compress PDF to a Smaller Size
Reduce PDF file size online for easier emailing and uploading. Choose a compression level or compress to a target size like 1 MB, 2 MB, or 5 MB.
How to Compress a PDF File
Reduce large PDF file sizes in 3 simple steps right in your browser.
Upload Your PDF
Choose the PDF document you want to compress, or try our instant 1-click sample document.
Choose Compression or Target Size
Select a preset (Balanced, Strong) or enter a target size like under 1 MB, 2 MB, or 5 MB.
Download Smaller PDF
Review your exact file size savings and download your optimized PDF document.
Compress PDF to a Specific Target Size (1 MB, 2 MB, 5 MB)
Solve strict upload limits on job portals, college admissions, and government forms.
Compress PDF to 1 MB
Ideal for email attachments and strict web application forms that cap uploads at 1 MB. ToolJi iteratively optimizes image objects until the file fits under 1 MB.
Compress PDF to 2 MB
The standard requirement for most university portals and corporate recruitment systems. Achieves a great balance of sharp text readability and small file footprint.
Compress PDF to 5 MB
Perfect for large multi-page reports, presentations, and scanned document packages containing high-density graphics and photos.
Compress PDF Without Losing Quality
Text and vector elements in PDFs do not degrade when compressed. ToolJi keeps vector font streams crisp while intelligently downsampling embedded images and cleaning unneeded metadata.
Why Compress Your PDF?
- Pass strict upload limits on job portals & college admissions
- Avoid email attachment bounce-backs (Outlook/Gmail 25 MB limit)
- Faster document sharing over WhatsApp, Telegram & Mobile Data
- Optimize scanned PDF receipts and multi-page invoices
Are My PDF Documents Uploaded to Any Server?
No. ToolJi compresses PDF files entirely inside your web browser using client-side JavaScript. Your documents stay 100% private on your own device.
Frequently Asked Questions
Everything you need to know about PDF compression on ToolJi.
How do I compress a PDF online?
Upload your PDF or click 'Try Sample PDF'. Select a preset compression level (Light, Balanced, Strong) or choose a target size like under 1 MB or 2 MB, then click 'Compress PDF Now' to download your smaller PDF.
Can I compress a PDF to under 1 MB, 2 MB, or 5 MB?
Yes! ToolJi includes a dedicated Target File Size engine. Select < 1 MB, < 2 MB, or < 5 MB and our compressor will progressively optimize embedded images and objects until the requested limit is reached.
Will compressing a PDF reduce text or document quality?
No. ToolJi preserves vector text streams, fonts, and document layouts. Compression primarily optimizes high-density embedded images to reduce file size while keeping text sharp and readable.
Are my PDF documents uploaded to any server?
No. ToolJi processes all PDF decoding, image optimization, and document reconstruction 100% locally inside your web browser memory. Your files are never uploaded to any external server.
Can I compress scanned PDF documents?
Yes! Scanned PDFs contain high-resolution page images and usually achieve huge file size reductions (up to 70–85% smaller) when compressed.
Why didn't my text-heavy PDF shrink very much?
PDFs containing purely vector text and minimal images are already compact. ToolJi will optimize object streams, but text documents have less room for compression compared to image-heavy or scanned PDFs.
What happens if my PDF cannot reach the target size?
ToolJi will compress the document as much as possible while maintaining readable quality. If a target size (e.g. 1 MB) cannot be met without destroying text readability, we return the best reasonable result with a clear explanation.
Is ToolJi PDF Compressor free to use?
Yes, 100% free with no signup required, no file limits, and no watermarks added to exported PDFs.
What is the maximum PDF file size supported?
ToolJi supports processing PDF files up to 100 MB directly in your web browser memory.
Can I compress password-protected PDF files?
Encrypted or password-protected PDFs cannot be modified without unlocking them first. Please remove password protection before compressing.
Does compression change the page count or layout of my PDF?
No. All pages, dimensions, orientation, and layout structures remain exactly as in the original PDF.
Can I use PDF Compressor on my mobile phone?
Yes! ToolJi works smoothly on Android Chrome and iPhone Safari touchscreens with fast local processing.