HEIC to PDF Converter

How It Works

This converter processes your images entirely within your web browser using the Canvas API and a custom PDF 1.4 builder. When you upload images, each one is decoded into pixel data, rendered onto a hidden canvas at your chosen quality level, and then encoded as JPEG data that gets embedded directly into the generated PDF file.

Every image becomes a separate page in the final PDF. The tool calculates the optimal placement and scaling for each image based on your chosen page size, orientation, and margin settings. Images are scaled proportionally so they never appear stretched or distorted.

Because all processing happens client-side, there are no file size limits imposed by a server, and your images remain completely private. The PDF is constructed byte-by-byte in JavaScript following the PDF 1.4 specification, with proper cross-reference tables and embedded JPEG streams.

About the HEIC Format

HEIC stands for High Efficiency Image Container. It is the default photo format on Apple devices running iOS 11 and later. HEIC uses the HEVC (H.265) codec for image compression, achieving roughly 50% smaller file sizes compared to JPEG while maintaining equivalent visual quality.

The main challenge with HEIC is compatibility. While Safari and Apple's system handle it natively, most other browsers (Chrome, Firefox, Edge) do not support HEIC decoding. This tool detects your browser's capabilities and adjusts, offering full support in Safari and a smooth fallback for other browsers.

Converting HEIC images to PDF is useful for sharing photos with people who may not have Apple devices, attaching images to business documents, creating photo portfolios, or archiving pictures in a universally readable format.

Page Settings Guide

Choose the right page settings for your use case:

• A4 is the international standard paper size (210 x 297 mm), widely used outside North America. documents shared internationally.
• Letter is the standard North American paper size (8.5 x 11 inches). Best for printing in the US and Canada.
• Auto sizes each page to match the dimensions of its image, resulting in the sharpest presentation with no wasted space.
• Portrait orientation works best for tall images. space works best for wide images. Auto picks the best orientation for each image individually.
• Margins add breathing room around images. Use 0 for edge-to-edge (bleed) prints, or 36 points (half inch) for a clean border.
• Image Quality controls JPEG compression. 85% offers a good balance of quality and file size. Use 100% for maximum sharpness or lower values for smaller PDFs.

Common Use Cases

People convert images to PDF for many practical reasons. Here are the most common scenarios where this tool provides value:

Sharing Photos Across Platforms

When you take photos on an iPhone and send them to someone using Windows or Android, HEIC files may not open. Converting to PDF ensures the recipient can view the photos on any device with a PDF reader, which is virtually every modern computer and phone.

Creating Photo Albums and Portfolios

Photographers, designers, and artists can compile multiple images into a single multi-page PDF document. The drag-and-drop reordering feature makes it easy to arrange photos in the exact sequence you want before exporting.

Document Scanning and Archival

If you photograph documents, receipts, whiteboards, or handwritten notes, converting those photos to PDF creates a clean, organized file that is easy to store, search, and share.

Email Attachments and Business Use

PDFs are the standard for professional document exchange. Converting images to PDF before sending via email ensures compatibility and a polished presentation.

Tips for Best Results

Follow these recommendations to get the highest quality output from the converter:

• Use the highest quality source images available. The converter cannot add detail that is not in the original.
• For print-quality output, keep image quality at 90% or higher. For screen viewing or email, 70-80% saves file size without noticeable quality loss.
• Use Auto page size if you want each page sized exactly to its image. This avoids white bars on the sides or top/bottom.
• Reorder pages by dragging the thumbnail cards before converting. The page order in the PDF matches the order shown in the thumbnails.
• Remove unwanted images by clicking the X button on each thumbnail rather than starting over.
• On Safari (macOS/iOS), you can upload HEIC files directly. On other browsers, export your HEIC photos as JPG from your phone or use Apple's -in sharing to convert them first.