Compress PDF to 100KB
4.9 (6,000+ Reviews)Free PDF compression to 100KB or less with full security and no watermarks.
Select PDF File
Or drop it here.
Uploading... 0%
Manifest der Kommunistischen Partei.pdf
1.19 MB
Compressing Option
High-quality, larger file size.
High-quality,medium file size.
Less-quality, smallest file size.
Your file is ready
Manifest der Kommunistischen Partei.psd
10 MB → 6 MB (36% smaller)
Your file will be deleted permanently.
Delete File
Start OverWe're here to help and hear from you. Instantly connect with our support team!
Compressed for clarity. Final size is 120 KB.
Still want a smaller file?
Here's how to reduce it further >>
- HTTPS protocol with SSL encrypts file transfers
- Files processed by Amazon Cloud Servers in the US
- Files deleted 20 minutes after leaving the site
Learn more about why PDFgear is free. Still have questions? Feel free to contact us.
Guaranteed Privacy
PDFgear doesn’t collect any personal or file data. Your files are automatically deleted when you close the browser. For added security, PDFgear uses advanced SSL encryption. See our Privacy Policy for details.
Full Layout & Text Retention
PDFgear retains your document’s layout, fonts, selectable text, and form fields. Even after extreme compression, your PDF remains editable and accessible.
Intelligent Image Optimization
PDFgear automatically reduces image resolution and compresses embedded graphics while preserving enough clarity for on-screen reading and printing.
Fast Compression Speed
PDFgear quickly compresses PDFs in seconds to under 100KB so you can share or email your PDFs without any delay.
Works on Any Device
PDFgear runs in your web browser and supports Windows, macOS, Linux, iOS, and Android. Whether you're on a phone, tablet, or desktop, compression is always just one click away.
Easy to Use
PDFgear’s clean interface makes compression simple. Just drag and drop your file and you're done. No technical skills are needed to compress PDF to 100kb with ease.
Alternative Solution: Compress PDF to 100KB Offline for Free
PDFgear offers both free online and offline PDF Compressor.
| Features | PDFgear Software | PDFgear Online Compressor |
|---|---|---|
| Accessibility | Installation required | Web browser-based |
| File Size Limit | No limit | 100 MB |
| Performance | Fastest | Faster ¹ |
| Internet Requirement | Works without Internet | Internet required |
| Functionality | All-in-one PDF solution to edit, convert, sign, split, merge, compress, etc. | Compression only |
| User Experience | Advanced and full-featured | Simple and easy to use |
| Data Processing | Files processed on local device | Files processed by cloud servers ² |
| Ideal For | Power users needing advanced features and offline access | Users looking for fast, easy PDF compression online |
1. Faster: Requires uploading files to the server for processing; speed may vary depending on the size and complexity of the PDF file.
2. Files processed by cloud servers: Your files are uploaded to and processed on AWS US secure cloud servers. Files are deleted immediately after you download them, ensuring data privacy.
How to Compress PDF to 100KB Online for Free
1. Choose a PDF File
Click “Select PDF File” or drag and drop your file into the PDFgear compressor.
2. Compress your PDF
Compression starts automatically. Just wait a few seconds and watch the progress bar..
3. Download PDF File
Click “Download File” to save your compressed PDF under 100KB and ready for sharing or emailing.
Need a smaller size? Try the additional compression options available.
Your Questions Are Answered
Why can’t my PDF be compressed to 100KB?
Some PDFs contain high-resolution images or complex layouts that make extreme compression difficult. You can try removing pages or reducing image quality to further shrink the file.
Will compressing to 100KB affect the file quality?
PDFgear keeps your file readable, but extreme compression may slightly reduce image clarity or font sharpness. It's ideal when size matters most. However, it's not recommended for important documents like legal letters, government files, or reports that require high visual clarity.
Can I still fill out forms or add signatures after compression?
As long as form fields are preserved during compression, you can still fill them out. However, in extreme compression modes, forms may be flattened into static content. It's best to keep a backup of your original file.
Does this tool support scanned PDFs?
Yes. PDFgear can compress image-based PDFs such as scanned documents by optimizing image resolution and quality.
Related Tips on PDF Compression Online
Hyper Compress PDF Online Free [90% Compression] - PDFgear
Drag and drop to fast hyper compress PDF files 90% on Windows, Mac, Linux, Android, iPhone, and iPad. 80% quality retained, easy to use, no sign-up.
How to Reduce Scanned Document Size for Free
3 Free Methods Compress PDF Offline on Windows and Mac
Faster compression, full editing tools, and offline privacy – all in one lightweight tool.
Try PDFgear software and app