In a nutshell, the basic principle for working with photos is to label both the work of art and the photo(s) with exactly the same id code (all lower case)  so the program can match the photos with the right description.  Photos need the extension ".jpg" after the id code.  The id code needs nothing else.

 Photos are three types:
     1. thumbnail:  a small 1 1/2 photo positioned on the index pages.  You do not need to supply the thumb as it is prepared by software.
     2. Blow up: a photo which is between 9 and 12 inches in the longest dimension. This is the main full page view of the work.  You must supply at least one blow up photo of this size for each description unless for some reason it can't be illustrated.
     3. Optional Zoom Photo: In some cases a extra large photo is loaded for close-up examination in detail.  Size can be up to 30 inches in the longest dimension.  This is not always posted.

Upload Link:  Photos are uploaded from your computer directly using the upload button at the top of the control panel after you have properly sized and labeled each  photo for the web.

1. Format:  The photos should be the digital format of "jpg". 
2. Resolution: Photos scanned for the internet need a resolution of 72 dpi for maximum clarity.   
3. Size: While the main photo may range in size from six to 12 inches in the longest direction (recommended 9 to 12 inches),  zoom photos can be as big as you want.  Files over 500 kb load slowly on some connections, so as a practical matter zoom or any photos with file sizes of 500 kb plus are probably not going to show up on some user's browers.

4. Label: Photos are labeled with the inventory code number with a suffix for the photo type separated by a dot. (e.g. picasso1.jpg). IMPORTANT!! use lower case letters only plus any numbers you wish to include. 

5. Multiple photos: You can post more than one photo with each description or entry.  Multiple photos are recommended and  help sell, for example,  a suite of prints  with more than one work, or if you wish to show specific features such as signatures, damage, watermarks, etc..  Multiple photos must be listed in the format shown in the chart below. 

Following is a chart illustrating the photo labeling guidelines for different photo formats: For example a work with the inventory code picasso1 would label photos as shown below:

note: red is the "id or inventory code" for each photo and the blue text refers to the proper photo only information needed. The first photo has a default value of 1 for first photo and only needs the "dot jpg" suffix.  Only the second through 25th photos need to be  numbered to distinguish them from other photos for the same lot. (Note: the "underscore" is used on photos 2 through x).

first, second, etc.	large photo(blowup image)		Zoom Photo
single photo	picasso1.jpg		picasso1z.jpg
second photo	picasso1_2.jpg		picasso1_2z.jpg
3 or more	picasso1_3.jpg picasso1_20.jpg		picasso1_3z.jpg picasso1_20z.jpg

 Important: The software is looking for the number of photos specified in the listing form. You must indicate the number of photos to display with each description.  The catalog listing input form provides a field to list the number of photos posted on your site (photos). The computer program will automatically find and match the correct number of photos to the text inputs if these labeling guidelines have been followed.

 Helpful Hints and  Trouble-shooting 

Nearly every photo "no-show" problem is the result of a mis-labeled photo. The easiest way to check  is to left click on the broken photo icon and look in the pop-up box to determine the file name that the browser is looking for (case sensitive). Refer to the photo that belongs with that description and change the label if it does not match the pop-up box id. Make sure all alphabetical characters are lower case.

Photos that don't completely load are probably digitally damaged in some way. This often happens if the upload process is interrupted or disturbed in some way. Photos must be uploaded in binary format or the photos may appear as corrupt images.  It is also possible you may not have completely saved the digital conversion when converting it with your photo image software.  You want to use the proportional scaling feature when resizing photos, so that one dimension does not appear squeezed or stretched.