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450KB target — safely under 500KB portals. Medium usually yields 420–470KB. 100% private, free.
For to 450kb — 450KB.
100% Safe & Private – files never leave your browser
Browser-based compression via pdf-lib. No upload, no sign-up, instant.
or click to browse from your device
Single or multiple PDFs • No file size limit • No signup
Tip: For 450KB, try Medium first — switch to High if still over limit. All processing stays in your browser.
450KB is safely under 500KB portals.
Medium preserves tables and seals.
Batch under-450KB for email attachments.
Your Target
450KB
Fits most portals & email
Recommended Quality
Medium
Switch levels in widget until size fits
Privacy
100% Browser-Based
Files never leave your device
Everything for compress pdf to 450kb with Crafex.
Yes — 50KB buffer under 500KB cap.
Excellent — Medium under 500KB is near-original.
100% local.
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