Image to PDF Converter Free - Convert JPG & PNG to PDF

Convert JPG, JPEG, and PNG images to PDF online for free. Standard image conversion websites require you to upload your files to remote cloud servers, which raises privacy concerns for scanned personal records, IDs, and financial receipts. Jetpap processes your files 100% securely and privately sandbox, keeping your documents secure and private.

Introduction & Overview

Looking for a fast and secure way to turn your photos into a single document? Jetpap's **Free Image to PDF Converter** allows you to easily combine multiple images into one professional PDF file.

Whether you need to compile business receipts, organize homework pages, bundle passport scans, or archive personal photo galleries, our tool provides a serverless solution that keeps your data secure.

Core Features & Capabilities

Our local conversion engine provides formatting and optimization features:

• Visual Drag-and-Drop Reordering: Click and drag image thumbnails in the workspace grid to arrange the order of your pages.
• Smart File Size Compression: Choose from Best (Original), Standard (Medium Quality - saves ~60% size), or Small Size (Low Quality - saves ~90% size) presets.
• Page Layout Customization: Select standard A4, US Letter, or "Fit to Image" layout settings to match original image ratios.
• Orientation Presets: Lock pages to Portrait, Landscape, or use Auto-detect.
• Margin Controls: Choose Small, Big, or No Margins to adjust slide borders.
• Individual Page Rotation: Rotate individual image cards 90 degrees to fix layout orientation.
• Custom Output Filenames: Choose a custom filename for your generated document in the sidebar.

How to Use: Step-by-Step Guide

Combine your images into a PDF in five steps:

1. Upload Files: Drag and drop your JPG or PNG files into the upload box, or click to browse local files.
2. Arrange Page Order: Drag and drop the thumbnail cards to order the pages in your document.
3. Configure Output Options: Set your page layout sizes, margins, orientations, and custom filename in the sidebar control panel.
4. Adjust Individual Images: Rotate or remove individual pages using the controls on each thumbnail card.
5. Generate: Click **Generate PDF** to compile and save your document.

The Technology and Logic Behind It

Jetpap's converter runs entirely in your browser sandbox. The app uses the HTML5 **FileReader API** to load local images and display them instantly as grid thumbnails.

When you click generate, **pdf-lib** creates a blank document and inserts your photos page by page. The converter decodes image files, keeps aspect ratios, applies your margin settings, and writes them to the PDF catalog. This local workflow protects your photos and ensures that your files are never exposed on remote servers.

Key Benefits of Our Tool

• 100% Secure & Private: secure processing prevents your images from being uploaded to remote servers.
• Fit to Image: Adjusts PDF page dimensions to perfectly match original image dimensions.
• No Caps or Limits: Combine images of any size for free, with no watermarks or registration walls.
• Offline Functionality: Once loaded, the tool can run completely offline.