Will a 500KB PDF still be readable?

Yes — for text and light-scan PDFs, 500KB is usually plenty for a sharp, fully legible document. Photo-heavy PDFs may show more visible compression at this size than at 1MB or 2MB.

Why do some portals cap uploads at 500KB specifically?

500KB is a common ceiling for older government and university portals with tight server storage limits — it's one of the strictest common caps, alongside 100KB and 1MB.

What if my PDF is a scanned document, not a form?

Scanned PDFs are usually just embedded photos of each page, so they compress the same way as any other image-heavy PDF — this tool handles both equally well.

Can I compress a multi-page PDF the same way?

Yes — every page compresses together in one pass, and the 500KB target applies to the whole file, not per page.

FileNorm

Compress a PDF to 500 KB

Hit the exact size a portal demands — best possible quality for scanned documents, entirely in your browser.

Optimized for scanned documents: each page is re-rendered as an image. Pages stay clearly readable, but selectable text is not preserved.

Target size500 KB

Drop your PDF here or tap to choose

PDF — processed on your device

🔒 Your files never leave your device

How it works

1Drop your PDF — it never leaves your device, compression runs fully in your browser.
2We compress at the highest quality that still lands under 500KB, targeting the embedded images inside the file first.
3Download the compressed file immediately — most scanned PDFs go from several MB to under 500KB in one pass.

When you need this

Online applications, concours registrations, government portals and e-mail attachments often cap PDF uploads at a strict size. FileNorm compresses scanned documents to fit under that limit while keeping pages readable, so your dossier is accepted the first time.

Frequently asked questions

Will a 500KB PDF still be readable?: Yes — for text and light-scan PDFs, 500KB is usually plenty for a sharp, fully legible document. Photo-heavy PDFs may show more visible compression at this size than at 1MB or 2MB.
Why do some portals cap uploads at 500KB specifically?: 500KB is a common ceiling for older government and university portals with tight server storage limits — it's one of the strictest common caps, alongside 100KB and 1MB.
What if my PDF is a scanned document, not a form?: Scanned PDFs are usually just embedded photos of each page, so they compress the same way as any other image-heavy PDF — this tool handles both equally well.
Can I compress a multi-page PDF the same way?: Yes — every page compresses together in one pass, and the 500KB target applies to the whole file, not per page.

Why Your PDF Got Rejected (And How to Fix It in 2 Minutes)

The most common reasons a concours portal rejects your PDF — and the fastest way to fix each one, without losing readability.

Read the full guide →

Other target sizes

Compress a PDF to 2 MB Compress a PDF to 1 MB Compress a PDF to any size