Base64 to PDF.
Decoded in your browser.
Paste a Base64 string to preview and download the PDF without uploading it anywhere.
Base64 input
0 charsSupports both raw Base64 strings and data URLs starting with data:application/pdf;base64,
PDF preview
WaitingYour PDF appears here once the string decodes.
How to convert Base64 to PDF
- 1Paste your Base64 encoded string into the text area above
- 2The tool will automatically decode and display a preview of your PDF
- 3Click the download button to save the PDF file to your device
Common use cases
- Decoding PDF files received from API responses
- Converting Base64 strings from email attachments
- Extracting PDFs embedded in web applications
- Processing Base64 encoded documents from databases
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode PDF files for transmission over text-based protocols like email or when embedding in JSON/XML.
Need to generate PDFs?
If you need to convert HTML to PDF or generate PDFs programmatically, check out our HTML to PDF API service. It's built for invoices, reports, and documents with a privacy-first approach.