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Imran Iqbal
Imran Iqbal

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How to Convert JFIF to PDF Using Different Programming Languages

#webdev #programming #javascript #tutorial

The JFIF (JPEG File Interchange Format) is a lesser-known image format that can sometimes cause compatibility issues when shared across systems or applications. A common solution is converting JFIF files to PDF—a universally accepted document format.

While there are many tools available, developers may need to implement this functionality directly using code. This article covers how to convert JFIF to PDF in different programming languages, and also introduces a free online tool for non-programmers:

👉 Try it instantly here: JFIF to PDF Online Tool

🔍 Why Convert JFIF to PDF?

  • ✅ Universal Compatibility – PDF files work on all systems.
  • ✅ Archiving & Printing – PDFs are preferred for documentation.
  • ✅ Multi-image Handling – Merge multiple JFIFs into one PDF.
  • ✅ Security – PDF allows password protection and watermarking.

🛠️ Convert JFIF to PDF Using Code

Before diving in, note that JFIF isn’t widely supported by default in many libraries. Therefore, it is often best to convert JFIF to JPG or PNG first, then insert into a PDF.

1. ✅ JavaScript (Client-side) using jsPDF

Browser-based solution with Canvas

Convert to PDF

<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script>
<script>
  const { jsPDF } = window.jspdf;

  document.getElementById("upload").addEventListener("change", function (e) {
    const reader = new FileReader();
    reader.onload = function (evt) {
      const img = new Image();
      img.onload = function () {
        const canvas = document.getElementById("canvas");
        canvas.width = img.width;
        canvas.height = img.height;
        canvas.getContext("2d").drawImage(img, 0, 0);
      };
      img.src = evt.target.result;
    };
    reader.readAsDataURL(e.target.files[0]);
  });

  function convertToPDF() {
    const canvas = document.getElementById("canvas");
    const imgData = canvas.toDataURL("image/jpeg");
    const pdf = new jsPDF();
    pdf.addImage(imgData, "JPEG", 10, 10, 180, 160);
    pdf.save("converted.pdf");
  }
</script>
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✅ Works on any browser
✅ Great for frontend developers

2. ✅ PHP using TCPDF

Server-side conversion

require_once('tcpdf/tcpdf.php');

$imagePath = 'converted.jpg'; // Convert JFIF to JPG before use

$pdf = new TCPDF();
$pdf->AddPage();
$pdf->Image($imagePath, 15, 40, 180, 120);
$pdf->Output('converted.pdf', 'I');
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📝 Use ImageMagick or GD to convert .jfif to .jpg before inserting.

3. ✅ Python using Pillow and FPDF

Quick scripting with common libraries

from PIL import Image
from fpdf import FPDF

img = Image.open("input.jfif").convert("RGB")
img.save("temp.jpg")

pdf = FPDF()
pdf.add_page()
pdf.image("temp.jpg", x=10, y=10, w=180)
pdf.output("output.pdf")
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✅ Lightweight
✅ Easy to batch process images

4. ✅ Node.js using Sharp and PDFKit 

npm install sharp pdfkit
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const sharp = require("sharp");
const PDFDocument = require("pdfkit");
const fs = require("fs");

sharp("input.jfif")
  .toFormat("png")
  .toBuffer()
  .then((buffer) => {
    const doc = new PDFDocument();
    doc.pipe(fs.createWriteStream("output.pdf"));
    doc.image(buffer, 50, 50, { width: 500 });
    doc.end();
  })
  .catch((err) => console.error("Error:", err));
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✅ Great for web apps and automation
✅ Server-side rendering

5. ✅ C# (.NET Core) using iTextSharp

Desktop or backend C# implementation

using iTextSharp.text;
using iTextSharp.text.pdf;
using System.IO;

string input = "image.jpg"; // Convert .jfif to .jpg before
string output = "output.pdf";

Document doc = new Document();
PdfWriter.GetInstance(doc, new FileStream(output, FileMode.Create));
doc.Open();
doc.Add(new Paragraph("JFIF Image to PDF"));
doc.Add(Image.GetInstance(input));
doc.Close();
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✅ Good for enterprise-level projects
✅ Works well in ASP.NET, desktop apps

🔗 Prefer a No-Code Method?

If you're not a developer or just want a quick conversion tool:

✅ Use this free online tool:

🔗 JFIF to PDF Converter

Key Features:

  • Fully browser-based
  • No installation or signup
  • Privacy-friendly (no uploads to server)
  • PDF customization (margins, layout, split).

🧠 Final Thoughts

Whether you're building a solution in JavaScript or automating with Python or PHP, converting JFIF to PDF is simple with the right approach.

For developers — these language-specific examples show how to handle JFIF programmatically.
For everyone else — tools like JFIFtoPDF.online offer an instant and privacy-respecting solution.

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