A GEDCOM file is a text file, that doesn't include the actual photos but it may contain the links to the photos original location on your computer or family site.
Importing and exporting GEDCOM files from your family site on MyHeritage.com:
Exporting GEDCOM files from your family site on MyHeritage will include the links for the photos. MyHeritage is able to import any GEDCOM file with links for the photos.
To learn how to export a GEDCOM file from your family site, please read the following FAQ: Can I export a GEDCOM file of my family tree on my family site?
Importing and exporting GEDCOM files from the Family Tree Builder:
When exporting a GEDCOM file from the Family Tree Builder, the program suggests you create a sub-folder and export the photos into it. When importing a GEDCOM from MyHeritage.com site into the Family Tree Builder, the program will recognize the links and will download the photos to your computer and into the project.
When importing from Ancestry.com®, please note:
You may notice that your photos and documents are missing from your import. This is because Ancestry has started blocking outside services from downloading media files. We attempt to retrieve your photos during the upload process, but Ancestry’s new protection settings intervene and prevent the transfer.
While we can still import your family tree data, the media files are blocked by Ancestry.