Will the file be under 20KB?
Yes. The engine targets ≤20KB. Extremely complex images may need a crop first.
Hit strict 20KB photo limits for exams and government forms. Free online, no signup.
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Maximum 20 files
Some forms reject any photo over 20KB. FileLumo compresses to under 20KB automatically. Free, no signup.
Check the file you are about to process, especially when it contains contracts, IDs, invoices, payroll details, legal drafts, school records, or client information. FileLumo is designed for quick no-signup workflows, but the safest document workflow still starts with choosing the right file and keeping an untouched original copy.
Most PDF jobs are simple, but edge cases happen: very large scans, unusual fonts, password-protected files, embedded images, and old PDF versions can change the output. After processing, open the result once before sending it to a client, school, court portal, or upload form. Server-side workflows use TLS in transit. FileLumo does not store your files — download your result to keep a copy.
Yes. The engine targets ≤20KB. Extremely complex images may need a crop first.
No.
Yes. HEIC is accepted, or convert with HEIC to JPG first.
Helpful guides
Hit exact 50KB photo caps for exams, GDS, and government portals. Free, no signup.
Compress photos under 100KB for email and mid-tier portal limits.
Convert iPhone HEIC photos to JPG so Windows and portals accept them.
Shrink PNG, JPG, and WebP with a quality slider or exact 20/50/100KB portal mode.
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