Merge HEIF to PDF
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Supports: HEIF
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Need help?How to Merge HEIF Images to PDF
- Upload your HEIF images — Click "+ Add Files" or drag and drop your HEIF photos. Upload as many as you need.
- Choose merge mode — Under "Combine?", select "Single PDF" to merge all images into one document, or "Individual PDFs" to create a separate PDF per image.
- Set page layout — Choose "Portrait" or "Landscape" under "Page layout." Under "Paper size," pick from Original (fit to image), Letter, Legal, Tabloid, A3, A4, A5, Executive, or architectural sizes (Arch A, Arch B).
- Adjust margins — Under "Margin," choose No margin (0"), Narrow (0.5"), Moderate (0.75×1"), Normal (1"), or Large (2×1").
- Set image placement — Choose "Cover" (image fills the page) or "Contained" (image fits within margins). Set alignment to Top, Center, or Bottom.
- Adjust compression — Under "Image Compression," use the Image Quality (%) slider (1–100). Under "Compression Type," choose Screen (smallest), Ebook, Default, Prepress, or Printer (highest quality).
- Merge and download — Click "Merge" and download your PDF.
Why Merge HEIF Images to PDF?
HEIF (High Efficiency Image Format) is the modern image format used by Apple devices since iOS 11. While HEIF produces excellent quality at small file sizes, it's not universally supported — many Windows applications, email clients, and web platforms can't open HEIF files directly. Merging HEIF images into a PDF solves this compatibility problem instantly, since PDF is viewable on every device and operating system.
This is especially useful for iPhone and iPad users who need to share photo collections, create portfolios, compile scanned documents, or prepare images for printing. Instead of converting each HEIF file individually, you can combine an entire photo set into a single, organized PDF document with controlled page sizes and margins.
PDF Compression Types Compared
| Type | Quality | File Size | Best For |
|---|---|---|---|
| Screen | Lower | Smallest | Email, web viewing |
| Ebook | Good | Small | Digital distribution |
| Default | High | Medium | General purpose |
| Prepress | Very high | Large | Professional printing |
| Printer | Highest | Largest | High-quality print output |
Page Size Options
| Size | Dimensions | Use Case |
|---|---|---|
| Original | Matches image | Photos at native resolution |
| Letter | 8.5 × 11 in | US standard documents |
| A4 | 210 × 297 mm | International standard |
| Legal | 8.5 × 14 in | Legal documents |
| A3 | 297 × 420 mm | Large prints, posters |
| Tabloid | 11 × 17 in | Spreads, large layouts |
Frequently Asked Questions
Can I control the page order?
Yes. Drag and drop your uploaded images to arrange them in the exact order you want. The order you set determines the page sequence in the final PDF.
What's the difference between Cover and Contained placement?
"Cover" scales the image to fill the entire page — parts may be cropped if the aspect ratio doesn't match. "Contained" fits the entire image within the page margins, which may leave white space but preserves the full image.
Which compression type should I use?
"Screen" produces the smallest files, ideal for email or web sharing. "Default" is a good all-around choice. Use "Prepress" or "Printer" only when you need maximum quality for professional printing — these produce significantly larger files.
Can I merge HEIF and other image formats together?
This tool accepts HEIF files. To combine mixed formats (HEIF, JPG, PNG), use the Image to PDF tool which accepts all image types.
Will the PDF preserve HEIF image quality?
Yes. The Image Quality (%) slider controls JPEG compression when embedding images in the PDF. At 90–100%, quality is virtually identical to the original. Lower values reduce file size at the cost of some detail.
What margin should I choose for printing?
"Normal (1")" works for most home and office printers. Use "No margin" for edge-to-edge photo prints (if your printer supports borderless printing). "Narrow (0.5")" is a good compromise for photo documents.