Free online PDF tool

PDF to Base64 Converter – Encode Locally

Encode PDF bytes as raw Base64, a data URL, JSON or a JavaScript constant for developer workflows.

Browser-sideNo accountDirect download
Private by designFiles stay in your browser
100% browser-based Local processing

PDF to Base64

Encode PDF bytes as raw Base64, a data URL, JSON or a JavaScript constant for developer workflows.

Local processingDocument contents stay in your browser.
Focused workflowOnly the controls relevant to this PDF task are shown.
Input validationPDF and image inputs are checked before processing begins.
Best fit

When to use PDF to Base64

Use PDF to Base64 for developer workflows that need PDF bytes inside JSON, JavaScript, a data URL or a plain Base64 string.

Output

What the result contains

The source PDF stays unchanged; PDF Care encodes its bytes into the selected text representation for copying or downloading.

PDF to Base64: how it works

The encoder reads the validated PDF locally and can produce raw Base64, a data:application/pdf;base64 URL, formatted JSON or a JavaScript constant without sending the source document to the server.

How to use this PDF to Base64 tool

  1. Choose the file you want to process.
  2. Review the selected input and any available options, then choose Encode Base64.
  3. Download the generated result directly to your device.

PDF Care keeps this workflow browser-side so the document contents do not need to be sent to a PDF Care application server for processing.

FAQ

Questions about PDF to Base64

Are files uploaded when I use PDF to Base64?

No. PDF Care processes this tool locally in your browser, so the document contents are not uploaded to a PDF Care application server.

Which output formats are available?

Choose raw Base64, a PDF data URL, formatted JSON or a JavaScript constant.

Can I download the encoded text?

Yes. The selected output can be copied and downloaded as text, JSON or JavaScript.