How to Convert HEIC to PDF with Smallpdf

HEIC is the default photo format on many iPhones and iPads. It saves space, but many people and systems can't open it. Converting HEIC images to a PDF with Smallpdf gives you one document that is easier to share, print or attach to a form. This guide covers the preparation, the conversion itself, how to check the result, and what to do when the upload or output doesn't look right.

Before you start

Smallpdf is an online service. Your images are uploaded and converted on its servers, not on your device, so you need a working internet connection and a current browser. Smallpdf also offers desktop and mobile apps. Don't assume an app converts offline unless its own documentation says so.

• Confirm that the Smallpdf converter you open lists HEIC as an accepted input. Smallpdf's image-to-PDF tools accept several image formats, but check the supported list on the upload screen for HEIC rather than assuming it.
• Collect the HEIC files in one folder and rename them if the page order matters, so they're easier to arrange later.
• Keep the original HEIC files. Conversion creates a new PDF and should not replace your source photos.
• Check whether you are on a free or paid plan. Free use may come with limits on the number of tasks or file size, and these limits can change.
• If the photos show IDs, contracts, medical papers or other sensitive content, read Smallpdf's current privacy and file-retention terms before uploading. Treat them as statements to verify, not guarantees.

Step-by-step instructions

• 1. Open Smallpdf in your browser and choose its image-to-PDF converter (it may be labelled for JPG or for images in general).
• 2. Add your HEIC files by dragging them onto the upload area or using the file picker. If cloud import options appear, you can use them instead of a local folder.
• 3. Wait for the uploads to finish. If a file is rejected, stop here and see the problems section below rather than retrying the same file repeatedly.
• 4. Arrange the pages in the order you want them in the PDF. Remove any image you added by mistake.
• 5. If the tool shows layout options, such as page size, orientation or margins, set them now. Pick the option that matches how the PDF will be used, for example a standard paper size for printing.
• 6. Start the conversion and wait for Smallpdf to create the PDF.
• 7. Download the PDF to your device. Give it a clear name so it isn't confused with the original photos.

Options, button labels and plan limits differ between the website, the desktop app and the mobile app, and they change over time. Follow the labels Smallpdf currently shows rather than a fixed menu path. The process can be redone at any time: your HEIC originals remain unchanged, so you can run the conversion again with different settings.

Check the output

Open the downloaded PDF in any PDF viewer and check it page by page. Confirm the page count matches the number of images you uploaded and the order is correct. Also check that no photo is rotated or cropped unexpectedly.

Zoom in on text or fine detail to check sharpness, especially for photographed documents. Compare the colors and brightness with the original photo. HEIC images captured with HDR or a wide color range may look slightly different once converted. If a HEIC file holds extra content, such as a Live Photo or a burst, expect the PDF to show a still image only.

Check the PDF's file size before you email it or upload it to a portal. Location and camera metadata stored in the photos may not carry over into the PDF. If that information matters to you, keep the HEIC originals alongside the PDF.

Common problems and next steps

HEIC file not accepted: if Smallpdf rejects the upload, convert the photos to JPG first and then use the same image-to-PDF tool. On a Mac, Preview can export a HEIC image as JPEG. On an iPhone, setting Settings > Camera > Formats to Most Compatible makes the camera save new photos as JPG. It does not convert photos you have already taken.

Can't open HEIC files on Windows: Windows may need an additional HEIF codec before it can display HEIC images. You don't need this to upload the files through a browser. It does help when you want to preview the originals before converting.

Upload stalls or fails: check your connection, try fewer files at once, and check whether you have reached the file-size or usage limits of your current plan.

Pages are sideways or in the wrong order: rotate or reorder the images before converting, or adjust the order and orientation options in the converter if they are shown, then convert again.

PDF is too large to send: run the finished PDF through Smallpdf's PDF compression tool. Then check again that text and detail are still readable.

Files must stay on your device: if your rules don't allow uploads to an online service, use an offline method instead, such as exporting or printing to PDF from your operating system's built-in image viewer.