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Compress PDF Under 1MB Online

Reduce PDF size for applications, forms, banking, education, and government uploads.

Use this page when a portal asks for a PDF under 1MB. Balanced compression is a good starting point for scanned documents.

1. Upload PDF

PDF files up to 15MB

Privacy note

OctaveKit uses advanced browser-side technology to compress your PDFs. Your documents never leave your computer, ensuring 100% privacy.

  • Best for scans: This tool is highly effective for PDFs containing scanned documents and photos.
  • No Login: Start compressing immediately without an account.
  • Secure: We do not have access to your documents.

What this tool does

PDF Compressor reduces the file size of PDF documents for online uploads. It is especially helpful for scanned certificates, application documents, and forms with image-heavy pages.

Compression modes explained

Light keeps more visual quality, Balanced is a practical default, and Maximum tries harder to reduce file size when a portal has a strict limit.

When to use light, balanced, or maximum

  • Light: Use when the PDF is only slightly above the limit.
  • Balanced: Use for most scanned documents and application uploads.
  • Maximum: Use when the portal has a strict size such as under 1MB.

Privacy note

The tool first attempts browser-side compression. If server-side processing is needed, the file is temporarily processed for the request and deleted immediately.

Related tools

For document photos, use the Document Cropper. Image to PDF support is planned for a future OctaveKit tool.

PDF Compressor FAQs

Is this PDF compressor free?

Yes. OctaveKit PDF Compressor is free to use.

Will my PDF be stored?

No permanent storage is used. If backend processing is needed, the file is processed temporarily and deleted immediately.

Can I compress a PDF under 1MB?

You can try the under 1MB preset or Maximum mode. Some PDFs are already compressed and may not reduce much further.

Why is my PDF not reducing much?

Text-only PDFs and already-compressed PDFs may have little extra size to remove.

Which compression mode should I use?

Balanced is best for most users. Use Light for quality and Maximum for stricter upload limits.