Convert PDF files to Base64 encoded strings
Click the 'Select PDF File' button or drag and drop your document into the upload area.
Click the 'Convert to Base64' button. Our tool will instantly encode your entire PDF file into a Base64 string.
Your Base64 string will appear in the text box. You can click 'Copy' to copy it to your clipboard or 'Download' to save it as a text file.
PDF to Base64 encoding is the process of converting a PDF file into a long, text-based string format that can be easily embedded into
HTML, CSS, or JSON. Instead of uploading or linking to a PDF file stored on a server, Base64 allows you
to embed the file inline as text. This is especially useful for developers who want self-contained applications, faster loading, or secure
file transfer without relying on external hosting.
Base64 is not encryption—it’s simply a way of representing binary data as readable ASCII characters. This makes it ideal for transmitting PDF files through APIs, storing them in databases, or embedding directly in web apps.
The PDF to Base64 Converter is designed for both technical and non-technical users:
<iframe>, img tags, or API responses.Base64 is a way to convert binary files (like PDFs) into text characters. This makes them compatible with systems that handle text, such as HTML, CSS, XML, or JSON. It is widely used for transmitting data in APIs, emails, and self-contained apps.
No, Base64 is not encryption—it’s just encoding. While it hides binary data in plain text, it does not protect or encrypt your file. If you need encryption, consider using PDF password protection or Encrypt PDF tool.
Base64 encoding makes it easy to embed documents directly into web pages or applications. Instead of hosting files on a server, everything can be self-contained, reducing dependency on external storage and improving portability.
Yes. Once a PDF is encoded into Base64, it can be decoded back into its original format. This makes it reversible and highly practical for secure transfers.
No. PDFNano’s PDF to Base64 Converter runs entirely on your device using JavaScript. Your file never leaves your computer, ensuring complete privacy.
You can use the generated Base64 string in:
With PDFNano’s PDF to Base64 Converter, you can instantly turn any PDF into an embeddable Base64 string. It’s secure, fast, and works directly in your browser—no uploads, no risks. Whether you’re a developer embedding files in apps, a teacher sharing resources, or a business storing documents, this tool is the perfect solution.
Looking for more? Try our PDF to Text, PDF to Word, or Merge PDF tools to enhance your PDF workflow.
Millions of users trust PDFNano to edit, merge, convert, and sign their documents every day. Get started with one of our most-used tools below.
Combine multiple PDF documents into one single file.
Reduce the file size of your PDF for easy sharing.
Convert your PDF into an editable Word document.
Turn any Microsoft Word file into a universal PDF.
Add text, shapes, and annotations to your document.
Create your electronic signature and sign any PDF.
Convert PDF pages into high-quality JPG images.
Convert JPG images into a single, combined PDF file.
Convert the text in your PDF into spoken audio.
Compress image to reduce the size of your image.
Convert images into various formats.
Compress multiple images and optimized in once.