Merge multiple HEIC photos into a single PDF file — free, instant, entirely in your browser. Each HEIC image becomes one page. No file uploads, no signup, no watermark. Works on Mac, Windows, iPhone, and Android.
HEIC → PDF Merger
Free · Multiple Files · Browser-Based
Drop your HEIC files here
or click to choose — Multiple files · Unlimited · Free
HEIC stands for High Efficiency Image Container. It is the default photo format used by Apple on iPhone and iPad devices starting with iOS 11. Apple adopted HEIC because it stores photos at roughly half the file size of JPEG while keeping the same — or better — visual quality. That means your iPhone can fit more photos in the same storage space without any visible drop in sharpness.
The format is built on the HEIF (High Efficiency Image File Format) standard developed by the Moving Picture Experts Group (MPEG). Inside a HEIC file, images are compressed using the HEVC (H.265) codec, which is the same technology used for high-quality video compression. This is why HEIC handles fine gradients, skin tones, and shadows better than JPEG at smaller sizes.
The problem starts when you try to use HEIC files outside of Apple's ecosystem. Windows does not natively support HEIC without a paid codec extension from the Microsoft Store. Android devices cannot open HEIC files by default. Many email clients, online platforms, and document workflows reject HEIC entirely. PDF, on the other hand, is one of the most universally accepted formats in the world — supported on every device, operating system, and platform without any additional software.
Converting multiple HEIC files to one PDF solves the compatibility problem completely. Instead of sending ten HEIC attachments that some recipients cannot open, you send one PDF that anyone can view — on any device, without installing anything.
Beyond compatibility, combining multiple HEIC photos into one PDF makes practical sense for many everyday situations: sending property photos to a real estate agent, submitting receipts for expense reports, packaging event photos for a client, sharing a set of document scans, or archiving a photo series as a single organized file. A single PDF is easier to manage, easier to email, and easier to print than a folder of individual HEIC images.
| Feature | HEIC | JPEG | PNG |
|---|---|---|---|
| File Size | Very small (best) | Small | Large |
| Image Quality | Excellent | Good | Lossless |
| Transparency | Yes | No | Yes |
| Universal Support | Limited | Universal | Universal |
| Best For | iPhone storage | Web & sharing | Graphics & logos |
This tool converts your HEIC files to PDF entirely inside your web browser. Nothing is uploaded to any server at any point during the process. Your photos stay on your device from start to finish. This is not a marketing claim — it is a technical reality built into how the tool is coded.
When you add HEIC files, the tool reads them using the browser's built-in File API. The HEIC decoding is handled by heic2any, a JavaScript library that uses WebAssembly to decode the HEVC-compressed image data directly in the browser. WebAssembly is a low-level binary format that runs near-native speed inside modern browsers — it is the same technology used in browser-based video editors, 3D games, and professional design tools.
Once each HEIC file is decoded into raw image data, it is drawn onto an HTML Canvas element at full resolution. The canvas gives the tool a pixel-accurate representation of your photo that can be measured, scaled, and placed precisely. The PDF is then assembled using jsPDF, a well-established JavaScript library for generating PDF documents client-side. Each decoded image is added as a page to the PDF at the dimensions you selected — A4, Letter, or the original image size.
Because everything runs in the browser, the speed of conversion depends on your device's CPU and the number and size of your HEIC files. Modern devices handle batches of 20–30 photos in just a few seconds. Older devices may take slightly longer for large files, but the process is always local and private.
This tool gives you three page size options, each suited to different needs:
The Auto orientation setting reads each image's dimensions — wider images get a landscape page, taller images get a portrait page — and sets the PDF page orientation to match automatically. This means a mix of portrait and landscape photos each get the correct page layout with no manual adjustment needed per photo.
If you set a fixed orientation (Portrait or Landscape), every page in the PDF uses that orientation regardless of the source image. This is useful when you need a consistent layout throughout the document, such as a slide-style presentation or a uniform photo report.
Mac users have a few built-in options for converting HEIC to PDF, but none of them merge multiple HEIC files into a single PDF as quickly as this browser-based tool. Here is how to use it on Mac:
If you prefer a native Mac method, you can also open multiple HEIC files in Preview, select all thumbnails in the sidebar, and export to PDF using File → Export as PDF. However, Preview does not give you control over page size or orientation, and it requires the files to already be open in the app. The browser-based tool is faster for most users.
On Mac, HEIC files taken on an iPhone can be AirDropped directly to your Mac in seconds. Once on your Mac, drag them into this tool to create a PDF without opening any other application.
Windows does not natively read HEIC files. Opening a HEIC image in Windows Photos requires installing the HEIF Image Extensions codec from the Microsoft Store, which may cost money depending on your Windows version. This tool bypasses that requirement entirely — because it decodes HEIC in the browser using WebAssembly, no Windows-level codec is needed.
The resulting PDF opens natively in any Windows PDF viewer including Microsoft Edge, Adobe Acrobat Reader, or Foxit. No additional software needed at any step.
iPhone users often need to share HEIC photos with people who cannot open them. Converting directly on the iPhone means you do not need to transfer files to a computer first.
From the Files app, you can share the PDF directly via AirDrop, Mail, WhatsApp, or any other app. The entire process takes under a minute for most photo batches.
Android devices receive HEIC files from iPhones fairly often — in group chats, email, or shared drives — but Android cannot open them natively. This tool solves that directly in Chrome.
On Android, if HEIC files were sent to you via WhatsApp or another messaging app, save them to your storage first, then upload them here. The conversion works the same way.
The quality of your output PDF depends on a few key factors. Following these practices will help you get the sharpest, most professional-looking result every time.
When you select "Original" as your page size, each photo is placed in the PDF at its native pixel dimensions without any scaling. iPhone 15 Pro photos, for example, are up to 48 megapixels — setting the page to Original preserves every pixel of that detail. This is the best choice if the PDF will be printed at large format or if recipients need to zoom into fine details.
When you use A4 or Letter, the image is scaled down to fit the page. The scaling is proportional (no cropping, no distortion), and quality is preserved well, but very high-resolution photos will be slightly downsampled. For screen viewing and standard printing, this is invisible. For professional or archival use, prefer Original.
iPhone camera settings affect the quality of HEIC files. If you have enabled "Most Compatible" in Settings → Camera → Formats, your iPhone captures JPEG instead of HEIC. For the best HEIC quality, ensure "High Efficiency" is selected. Also avoid processing HEIC files through messaging apps like WhatsApp before uploading — WhatsApp compresses images, which permanently lowers resolution. Always upload the original file from your Camera Roll or iCloud Photos.
The order in which you add HEIC files to this tool determines the page order in the PDF. If you need a specific sequence — for example, chronological order for a photo report, or a particular narrative sequence for a client presentation — arrange your files before clicking Convert. You can remove and re-add files to adjust the order. Getting the order right before converting saves time compared to reordering pages after the fact in a PDF editor.
If your HEIC files include a mix of portrait and landscape photos — which is common when photographing both people and interiors, for example — the Auto orientation setting handles each page individually. A landscape photo gets a landscape PDF page, and a portrait photo gets a portrait PDF page. The result is a PDF where every image fills its page correctly without black bars or wasted white space.
This tool accepts standard HEIC and HEIF files produced by Apple devices. If your HEIC file was created by a non-Apple device or converted from another format to HEIC using third-party software, it should still work in most cases, but compatibility is best with native iPhone and iPad exports. Files with the .heic or .heif extension are both supported.
Many people photograph receipts with their iPhone to keep records. HEIC captures the receipt clearly at a small file size. However, most accounting software, expense platforms, and HR portals accept PDF but not HEIC. Combining all receipt photos into one PDF per expense report is the standard expected format. This tool lets you go from camera roll to submission-ready PDF in under two minutes.
Real estate agents, property managers, and homeowners frequently photograph properties with iPhones. Sharing 20–30 HEIC files as individual attachments is impractical and unprofessional. A single PDF with one photo per page is easy to email, print, and present to clients. Some agents add the PDF to a shared drive link or attach it to property listing documents.
After an accident, damage event, or theft, photos taken on an iPhone are often the primary evidence for an insurance claim. Insurance companies require documentation in standard formats. Converting your iPhone photos to a single PDF keeps all evidence organized, time-stamped (if metadata is embedded), and in a format that any claims adjuster can open without technical difficulty.
Students frequently photograph handwritten notes, lab results, drawings, and physical projects with iPhones for submission to learning management systems like Canvas, Moodle, or Blackboard. These platforms typically accept PDF but not HEIC. Merging all photos into one PDF is cleaner than uploading individual images and easier for instructors to review.
Photographing prescriptions, lab results, referral letters, or skin conditions for telemedicine consultations is common. Healthcare providers and patient portals require standard formats. A PDF combining relevant photos is the expected submission format for most telemedicine platforms. Because this tool never uploads your files to a server, it is suitable for sensitive health-related photos.
Site inspectors, contractors, and project managers photograph progress, defects, and completed work with iPhones daily. Compiling those photos into a single PDF report — organized by date or location — is a standard deliverable. This tool makes that compilation fast and requires no desktop software or email-to-conversion workflows.
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