April 12, 2026 · 6 min read
How to Convert Images to PDF in 2026 (JPG, PNG, HEIC)
The complete 2026 guide to converting JPG, PNG, HEIC, WebP and HEIF images into a single PDF — safely, privately, and for free.
Bundling photos into a single PDF used to mean firing up Photoshop, paying for Acrobat, or uploading sensitive documents to a website you don’t quite trust. In 2026 there’s a much better way: convert images to PDF directly in your browser, with zero cost and zero uploads.
This guide walks through everything you need to know.
Why convert images to PDF?
A PDF is the universal way to send a multi-page document. Compared to attaching a folder of JPGs, a PDF:
- Preserves order — pages 1, 2, 3 stay in order on every device.
- Looks identical everywhere — Windows, Mac, iPhone, Android, Linux, even e-readers.
- Compresses well — JPG-heavy PDFs stay reasonably small.
- Can be signed and watermarked — perfect for contracts, invoices, and proofs.
- Is searchable with OCR — turn a stack of photos into searchable text.
Step-by-step: convert images to PDF
- Open the Image to PDF tool on ImageInPDF.
- Drop, paste, or pick your images. JPG, PNG, HEIC, WebP, AVIF, GIF and BMP are all supported.
- Drag thumbnails to set the order — page 1 is the first thumbnail.
- Choose page size (A4 / Letter / Legal / A3 / A5 / Tabloid / Fit-to-image), orientation, image fit, margin and quality.
- Tap Convert — your PDF downloads instantly.
Pro tip: pick the right page size
| Use case | Best page size |
|---|---|
| EU paperwork & general printing | A4 |
| US business documents | Letter |
| Legal contracts (US) | Legal |
| Photo-only PDFs (no text) | Fit to image |
| Large prints & posters | A3 / Tabloid |
Quality vs. file size
The Quality setting maps to JPEG compression:
- Best (100%) — archive grade. Use for printed photos and legal documents.
- High (92%) — visually identical to Best, ~30% smaller.
- Balanced (80%) — sweet spot for sharing and email.
- Smallest (60%) — perfect for chat apps and form uploads with size limits.
If you need an even smaller file, run the result through our Compress PDF tool.
What about HEIC photos from iPhone?
HEIC support depends on your browser. Safari on iPhone and iPad handles HEIC natively, so converting iPhone photos works without any extra step. On other browsers (Chrome, Firefox, Edge), the OS may convert HEIC to JPG automatically when you pick the file. If you have trouble, take a screenshot of the photo or use Apple’s built-in “Share → Copy Photo” which converts to JPG.
Privacy: where do your photos go?
Nowhere. ImageInPDF is a static web app. There is no server-side conversion. The moment you tap Convert, your browser stitches the images into a PDF using a JavaScript library called pdf-lib. The PDF is created in memory on your device and saved straight to your downloads folder.
You can verify this for yourself: turn off Wi-Fi after the page loads and the tool will still work.
Common questions
Can I add a cover page or text? Use the Watermark PDF tool to add a header, footer or full-page text overlay after conversion.
My PDF is huge — what do I do? Either pick “Smallest” quality during conversion or run the file through Compress PDF.
Can I scan documents from my phone? Yes — try our Document Scanner, which auto-enhances photos into clean B&W or color scans.
Conclusion
Converting images to PDF should be free, fast and private. ImageInPDF makes that the default. Bookmark the Image to PDF tool and you’ll never need a paid PDF app for this task again.