HEIC files from your iPhone look great on Apple devices but cause headaches everywhere else. Here's how to convert HEIC to PDF on iPhone, Mac, Windows, and with free online tools — in seconds, no quality loss.
Frequently Asked Questions
Can I convert HEIC to PDF without losing quality?
Yes. Converting HEIC to PDF preserves full image quality — the visual result is identical to the original. You lose Live Photo animations and burst mode metadata, but the still image remains crisp. Use a tool like the free [Scanjet Document Converter](https://scanjet.app/document-converter/) for lossless results.
Why can't Windows open my HEIC files?
HEIC is Apple's format — Windows doesn't support it natively. You need to install the free HEIF Image Extensions from the Microsoft Store, or simply convert to PDF or JPEG using an online tool or the [Scanjet Document Converter](https://scanjet.app/document-converter/).
How do I convert HEIC to PDF directly on my iPhone?
Open the Photos app, select your HEIC image, tap the Share button, and choose "Print." On the print preview, pinch outward on the thumbnail — it becomes a PDF. Tap Share again to save it. For batch conversions, use [Scanjet](https://scanjet.app) to scan and export as PDF directly.
Is it safe to upload HEIC files to online converters?
It depends on the tool. The Scanjet Document Converter processes files entirely in your browser — nothing is uploaded to a server. Always check whether a converter uploads files before using it for sensitive photos.
What is the difference between HEIC and JPEG?
HEIC files are 40–50% smaller than JPEG at equivalent quality. A 12MP iPhone photo is typically 1.5 MB in HEIC versus 3 MB in JPEG. HEIC also supports 16-bit color depth and lossless compression — features JPEG cannot match. The downside is limited compatibility outside Apple devices.