uses a high-resolution tiling viewer. Instead of trying to "Save Image As" (which often only saves a low-res preview), use the zoom tools provided on the site. The "Download" Button:
Apple's High-Efficiency Image Format compresses better than JPG. Some newer cameras now output .heic files at half the size for the same quality. filedot ams jpg full
One powerful feature of these "full" images is that they often contain data. You can view this using any photo viewer or command-line tool like exiftool . uses a high-resolution tiling viewer
To avoid ending up with cryptic file names like this in the future: Some newer cameras now output
The search term "filedot ams jpg full" appears to be a specific technical query related to retrieving or viewing high-resolution image files from the Amsterdam City Archives (Stadsarchief Amsterdam) digital repository.