PDF to Base64 – I7 Pixel

// PDF Tools

PDF to Base64

Convert any PDF to a Base64 encoded string for embedding in HTML, CSS data URLs, JSON payloads, or API calls. Choose your output format and copy instantly.

✓ Free · No Upload Instant Conversion Data URL · Raw · JSON 100% Client-Side

⟨/⟩ Base64

💡 Your PDF is read entirely in the browser — nothing is ever sent to a server. The Base64 output is generated instantly on your device.

⟨/⟩

Drop a PDF file or browse

Select one PDF to convert to Base64

✅ Converted —

Converting…

Output Format

data:application/pdf;base64,…

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⚙️ Options

Output Format

              Ready to embed in <img>, <iframe>, or CSS backgrounds.
            

Output Options

Wrap long lines (76 chars)

JSON key name

Used when output format is JSON

ℹ️ About Base64

What is Base64?

Base64 encodes binary data (like a PDF) into ASCII text using 64 characters (A–Z, a–z, 0–9, +, /). This lets binary files travel safely through text-only channels.

Use Cases

📧 Email — attachments use Base64

🌐 HTML/CSS — embed PDFs directly as data URLs

🔌 APIs — send binary data in JSON payloads

📦 Storage — store files in text-based databases

Size Note

Base64 increases file size by ~33%. A 1 MB PDF becomes ~1.37 MB as Base64. For large PDFs, consider keeping the file as a URL reference instead.

Output Formats

data URL — data:application/pdf;base64,…
raw — plain Base64 string
html — <embed> tag ready
json — {"key":"…"}
css — url("data:…")