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saracarl authored May 16, 2024
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https://help.archive.org/help/books-and-texts-a-basic-guide/

### Special Considerations for Images
Although most image formats are supported by the Internet Archive, image formats that support tiling, like JPEG2000 and Pyramidal TIFF are the best types of images for the deep zoom provided by IIIF image viewers. In our experience PTIFFs are served most efficiently by the underlying Cantaloupe image server, however, the Internet Archive does not display images on the Internet Archive item page for uploaded PTIFFs. The item page will display a message like "THERE IS NO PREVIEW AVAILABLE FOR THIS ITEM This item does not appear to have any files that can be experienced on Archive.org. Please download files in this item to interact with them on your computer." [An example.](https://archive.org/details/tx-burnet-123835-1909-125000-geo) That may be fine if you only wish to interact with the item in a IIIF context, however, if you would like the item to be both visible in the Internet Archive and via deep zoom in IIIF you may want to choose JPEG2000 format.
Although most image formats are supported by the Internet Archive, image formats that support tiling, like JPEG2000 and Pyramidal TIFF are the best types of images for the deep zoom provided by IIIF image viewers. In our experience PTIFFs are served most efficiently by the underlying Cantaloupe image server, however, the Internet Archive does not display images on the Internet Archive item page for uploaded PTIFFs. The item page will display a message like "THERE IS NO PREVIEW AVAILABLE FOR THIS ITEM This item does not appear to have any files that can be experienced on Archive.org. Please download files in this item to interact with them on your computer." [An example.](https://archive.org/details/tx-burnet-123835-1909-125000-geo) That may be fine if you only wish to interact with the item in a IIIF context, however, if you would like the item to be both visible in the Internet Archive and via deep zoom in IIIF you may want to choose JPEG2000 format. (You can also upload both a PTIFF and a JPEG, but the current IIIF code will unfortunately serve the JPEG instead of the PTIFF.)

Note that you do not have to use either of these image formats -- normal images will also work.
Note that you do not have to use either of these tiled image formats -- normal images will also work.

### See Also
Please see the [Internet Archive Documentation on uploading](https://help.archive.org/help/category/archive-org/uploading/) for more information.

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