How do I compress a PDF to 100KB?

Use our PDF compressor with the High compression setting. Most PDFs with images can be reduced to under 100KB. For very large files, you may also need to split the document into smaller sections.

What is extreme PDF compression?

Extreme PDF compression applies maximum optimization to reduce file size by 80-95%. It aggressively compresses images while maintaining readable text. This is ideal for meeting strict upload limits on visa portals, email, and job applications.

Will extreme compression make my PDF unreadable?

No. Our compression prioritizes text clarity. Images will be more compressed but text remains sharp and readable. Always preview your compressed PDF before submitting to important applications.

How do I shrink a PDF for visa applications?

Upload your document to our compressor, select High compression, and download. Most visa portals require files under 300KB-2MB. Our tool typically achieves 90%+ reduction, making it easy to meet these limits.

Maximum Compression Mode

Extreme PDF Compression

Shrink PDF files to 100KB, 200KB, or 500KB. Maximum compression for strict file size limits.

Compress PDF Now

Free • No uploads • Works in your browser

Target Your Exact File Size

Under 100KB

For the strictest limits. Indian visa portals, legacy upload systems, and email signature attachments.

Indian e-Visa (300KB limit)
Email signature PDFs
Legacy form uploads

Under 500KB

The sweet spot. Works for most government portals, job applications, and web uploads.

Schengen visa (VFS Global)
Job application portals
University submissions

Under 2MB

Standard maximum. Fits most email attachments and modern upload forms.

US visa applications
UK visa portal
Most email clients

Start Compressing

How to Get Maximum PDF Compression

Upload Your PDF

Drop your file into our PDF compressor. Works with any PDF size - we've compressed 100MB+ files down to under 1MB.

Select "High" Compression

For extreme compression, choose the High compression setting. This applies maximum optimization to images while keeping text sharp.

Download Your Shrunk PDF

Get your compressed file instantly. Most PDFs shrink by 80-95% with high compression. A 10MB file becomes 500KB-1MB.

Pro Tip: Still Too Large?

If your PDF is still over your target size after high compression:

1.Split the PDF into smaller sections and upload them separately
2.Remove unnecessary pages before compressing
3.For scanned documents, try rescanning at 200-300 DPI instead of 600 DPI

When You Need Extreme Compression

Visa & Immigration Applications

Government portals have strict limits. Indian e-Visa requires under 300KB. Schengen (VFS) often fails above 1MB.

Read our visa compression guide →

Email Attachments

Gmail and Outlook have 25MB limits, but files over 10MB often fail or get blocked by corporate filters.

Check email size limits →

Job Application Portals

ATS systems and HR portals often have 2-5MB limits. Large resume PDFs get rejected silently.

University Submissions

Thesis uploads, assignment submissions, and application documents often have strict size caps.

Government Forms

Tax documents, license applications, and permit forms frequently require small file sizes.

Web Upload Forms

Insurance claims, support tickets, and customer service forms often cap at 2-5MB per file.

Real Compression Results

Actual file sizes achieved with our extreme compression settings:

Document Type	Before	After	Reduction
Scanned passport (600 DPI)	8.2 MB	420 KB	95%
Bank statement (20 pages)	12.5 MB	890 KB	93%
Photo-heavy portfolio	45 MB	2.1 MB	95%
Employment letter	3.8 MB	180 KB	95%
Flight itinerary	2.1 MB	95 KB	95%

Results vary based on content. PDFs with images compress most; text-only PDFs compress less.

Your Documents Stay Private

Unlike other compression tools, your PDFs never leave your device. All processing happens in your browser - no uploads, no cloud storage, no data collection.

Perfect for sensitive documents like passports, bank statements, and legal papers.

Ready to Shrink Your PDF?

Get your PDF under 100KB, 500KB, or any size limit. Free, instant, and private.

Compress PDF Now