How to Upload JPEG and HEIC Images in Acrobat PDF Forms
Question details
The user needs to upload .jpeg and .heic image files into an Acrobat PDF form via an image button, but is blocked by default file type restrictions.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Filling out or designing a PDF form that requires inserting images, particularly when sourcing photos from newer iPhones that save in HEIC format.
- Observed behavior
- The Acrobat file upload dialog filters acceptable images to PNG, GIF, JPG, TIF, and PDF only. This hides files with the .jpeg extension and rejects unsupported .heic files.
Before proceeding, check if you can temporarily transfer the HEIC images to a computer or convert them to a standard JPG format, as PDF form image buttons have limited native support for Apple's HEIC container.
Bypass File Dialog Filter to Show JPEG Files
Since JPG and JPEG are exactly the same format, you can bypass Acrobat's restrictive file dialog filter using a simple wildcard search.
Acrobat's file dialog sometimes specifically looks for the '.jpg' extension, hiding files that use the '.jpeg' extension despite them being the same image format. You can force the dialog to show all files.
Click the designated image upload button within your Acrobat PDF form to trigger the 'Open File' dialog window.
Click inside the 'File name' text box at the bottom of the dialog window. Type `*.jpeg` or `*.*` to override the default filter.
Press the 'Enter' key on your keyboard. The dialog will refresh to display your .jpeg files. Select your image and click 'Open' to insert it into the form.

Convert HEIC Images to JPG or PNG
Because native HEIC support varies heavily based on your operating system and Acrobat version, converting the file to a universally supported format is the most reliable method.
Easily Insert and Edit Images in PDFs with WPS Office
Struggling with strict PDF form restrictions? WPS Office provides an intuitive PDF editor that allows you to directly insert, replace, and manage standard image formats in your PDF documents without dealing with complex dialog filters.
- 1. Open your PDF: Launch WPS Office and open your PDF document.
- 2. Access Edit Tools: Navigate to the 'Edit' tab located on the top menu bar.
- 3. Insert Image: Click the 'Add Image' button, select your compatible image file from your device, and drop it directly onto your PDF page.

Frequently Asked Questions
Is there an actual difference between JPG and JPEG files?
No, they are the exact same image format. The different extensions are just historical artifacts from older Windows operating systems that originally required three-letter file extensions (.jpg), while macOS and Linux allowed four letters (.jpeg).
Why are my iPhone photos saving as HEIC instead of JPG?
Apple uses HEIC (High-Efficiency Image Container) by default on modern iOS devices because it drastically reduces the file size of photos while maintaining high image quality, saving valuable storage space on your device.
Can I force my iPhone to take JPG photos to avoid PDF upload issues?
Yes. You can change your default camera settings by going to Settings > Camera > Formats on your iPhone. Select 'Most Compatible' to ensure all future photos are saved as standard JPGs instead of HEIC.




