How do I compress a PDF to 100KB?

Upload your PDF above. The target is already 100KB, so click Compress. The tool finds the best quality that fits and shows the final size before you download.

Will the text still be readable at 100KB?

Yes for one or two page documents. The pages are rendered as images, so the text stays readable but cannot be selected or copied.

My PDF will not go under 100KB. What can I do?

Remove unneeded pages, convert colour scans to black and white, or split the document if the portal allows several uploads. Long or photo-heavy PDFs may not fit in 100KB at a readable quality.

Is my document uploaded anywhere?

No. Compression runs entirely in your browser.

Yes. No signup, no watermark and no limit on the number of PDFs.

Compress PDF to 100KB

Get any PDF under 100KB for online forms, exam and job applications. The target is already set to 100KB - upload, compress, download. Free, private, no signup.

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Features

Preset to 100KB - upload and compress, nothing to configure
Aims just under the limit so the upload is accepted
Shows the exact final size before you download
Switch to 200KB, 500KB, 1MB or a custom size if you need to
100% private - the PDF is processed in your browser
No signup, no watermark, no daily limit

When You Need a PDF Under 100KB

Online Application Forms

Some portals cap each document at 100KB. Get certificates and ID proofs under the limit.

Exam Registrations

Upload mark sheets and supporting certificates that must stay under 100KB.

Government Services

Attach scanned documents where every file has a strict size cap.

Job Portals

Upload a resume or certificate to career pages that accept only small files.

Getting a PDF Under 100KB: What Works

How the tool reaches 100KB

Each page is rendered as an image and saved as a compressed JPEG. The tool tries different quality levels, keeps the best one that fits under 100KB, and rebuilds the PDF. The result reads clearly but the text can no longer be selected - fine for a form upload.

100KB is a tight limit: it suits one or two pages. For longer documents, remove pages the form does not need first.

If the file still will not fit

Cut pages you do not need with Remove PDF Pages.
Turn colour scans black and white with the black and white PDF converter - colour photos of documents are the most common reason a PDF will not shrink.
Password-protected PDF? Unlock it first, then compress.
If the portal allows 200KB, Compress PDF to 200KB keeps more quality.

Need a different size or an image?

The same tool handles 200KB, 500KB, 1MB and custom sizes: see Compress PDF to Exact Size. For a photo or signature rather than a PDF, use Compress Image to KB.