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Supported file types and sizes [Tier 1]

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Supported file types

Default Content Type 1 Supported File Types JSTOR Viewer Type JSTOR Download Format 2
Document PDF (.pdf) 3

File size under 100MB: Touchscreen-optimized PDF viewer featuring continuous scroll, zoom, pagination controls, page thumbnails, keyword search, text highlighting, and fullscreen reading mode.

File size over 100MB: International Image Interoperability Framework (IIIF) viewer featuring zoom, pan, pagination buttons, page thumbnails, fullscreen, and compare mode.

 PDF (.pdf)
Image PNG (.png)
JPEG (.jpg, .jpeg) 3
TIFF (.tif, .tiff) 3
JP2 (.jp2)
GIF (.gif)

International Image Interoperability Framework (IIIF) viewer featuring zoom, pan, image thumbnails, fullscreen, and compare mode.

JPEG (.jpg)
Panorama QTRV/MOV (.qtrv, .mov)
JPEG (.jpg, .jpeg) 4 		Panorama viewer featuring zoom, pan, fullscreen, and compare mode. No downloads

Audio

 MP3 (.mp3)
WAV (.wav)		 Mobile-optimized audio player featuring play/pause, scrubbing, volume and speed control; and clickable timestamps in transcripts (if applicable). MP3 (.mp3)

Video

 ASF (.asf)
MOV (.mov)
MPEG (.mpg, .mpeg)
AVI (.avi)
WMV (.wmv)
MP4 (.mp4)
M4V (.m4v)
3GP (.3gp)		 Mobile-optimized video player featuring play/pause, scrubbing, volume, speed, and closed captioning controls; and clickable timestamps in transcripts (if applicable). No downloads

1 - Content types are assigned automatically according to file extension.

2 - Applicable only if downloads are enabled via your collection page. See Customizing your institution and collection pages.

3 - PDF, JPEG, and TIFF files will have optical character recognition (OCR) enabled to allow full-text search for the item when publishing to JSTOR.

4 - Where JPEG "ProjectionType" is "equirectangular".

Note: Audio files over 2GB and video files with audio tracks over 2GB will not be automatically transcribed; however, you can provide a transcript after uploading. See Transcripts for audio and video.

File size recommendations

While there is no limit to size of files that can be uploaded, upload size may be limited by your browser and we recommend keeping individual files under 3GB and batch uploads under 20GB.

Please note if your upload takes more than 10 minutes the system may time out.

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