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#1 Posted : Sunday, April 25, 2010 7:53:35 PM(UTC)

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Joined: 4/25/2010(UTC)
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Image Uploader is a great client side tool, however I'd like to pre-fill the description/title etc. fields with exif/iptc information.

Thus client side access to exif/iptc would be best way to do it, however these properties are available only server side.

Would it be feasible to retrieve exif+iptc to client side by
1) first uploading exif+iptc with very small thumbnails, quietly behind when the files are added to upload list (massaging upload list Send from UploadFileCountChange ? and restogin uploadlist selections), and then
2) retrieving exif+iptc to client side using callback (from AfterUpload ?).

Any help on this is appreciated!
#2 Posted : Monday, April 26, 2010 5:55:23 PM(UTC)

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You can realize the algorithm you describe, but It is highly non-recommended, because it has the effect on user interface. Also some files can be lost.

I recommend you to use the following method:
  1. Extract necessary exif/iptc fields using ExtractExif/ExtractIptc and send them on server
  2. After upload process completes, show to users the page like gallery where they can correct or add appropriate information in exif/iptc fileds
  3. Save new exif/iptc information on server
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