Is it safe to process data uri here?

Yes, our zero-upload architecture ensures your data never leaves your device.

Does this require Adobe Acrobat?

No, ToolsMatic provides professional tools completely free within your browser.

🔒 Files never leave your browser

Pdf To Base64 for Data URI

Convert PDF files to Base64 encoded strings instantly. Choose raw Base64 or Data URI format, copy to clipboard, or download as text. No upload required — 100% client-side.

Drag & drop your PDF here

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Single PDF file, max 50MB

File: —

Original: —

Base64: — (+~33%)

Length: — chars

Output Options

Data URI prefix
Add data:application/pdf;base64, prefix

Format with line breaks
Insert breaks every 76 chars (RFC 2045)

Base64 encoding increases file size by ~33% but ensures safe transmission in text-only channels like JSON, XML, or email.

Original: — → Base64: —

Base64 Output Preview

0 characters • 0 lines

Convert your PDF to see the Base64 output...

Encoding PDF... 0%

Base64 Encoding Complete!

Download filename:

—

Why You Need This for Data URI

Developers need to embed PDFs in HTML.

How ToolsMatic Solves It

Generate the exact Base64 string required. Because ToolsMatic operates purely on the client-side using advanced WebAssembly, your documents are never uploaded to our servers, guaranteeing absolute privacy for your data uri.

Pdf To Base64 for Data URI

Why You Need This for Data URI

How ToolsMatic Solves It

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