Frequently Asked Questions

Main > Customize my TeacherWeb site > Uploading Files
 

I'm having problems when I try to upload my photo/document. What can I do?


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Created 2007-10-05
Modified 2009-09-08
Views 7933

There are a few possible error messages you may encounter when uploading a document.  The types of errors and steps to prevent them are available below.

"Upload is Unsuccessful":

Remove any blanks, periods (other than the period in the file extension), commas, percent signs or other special characters from the file name before uploading. Also, especially if you are using a Mac, make sure that the file extent in the file name (e.g., .gif, .jpg) appears in the filename input box.

Not all file types can be uploaded to TeacherWeb.  If you are trying to upload an unusual file type, it may not be included in our list of accepted file types.  If you have a new file type that you think should be added to the list, please contact us via a Support ticket.  Please include the full file name of your file, as well as the name of the program that was used to create the file.  We will evaluate the file type for possible inclusion.

Click here for more information on this issue, including our full list of accepted file types.

Not enough space left:

TeacherWeb sites come with 100MB of total upload space.  This error indicates that you have exceeded the amount of total available upload space on your site.

The best way to prevent this issue is to be sure you are not uploading excessively large images.  Generally, any image file that is larger than 100KB is probably larger than it needs to be for proper display.  You may need to edit your file to reduce its size before uploading.

If needed, you can purchase additional upload space as described here.

Here are some guidelines on uploading graphics:

  1. Graphics files should be in GIF or JPG format.

  2. The JPG format is usually best for photos, whereas the GIF format is usually best for drawings due to the different compression algorithms.

  3. Generally, the maximum dimensions for an image should be 640(width)x480(height) pixels. Today's digital cameras often take pictures at 1600x1200 pixels or more. Most graphics software allows one to easily scale down the physical size of images. This can also greatly reduce the file size.

  4. In order to reduce your graphic's file size without losing viewing quality, you can save the graphic at a "lower quality" setting (meaning increased data compression). This can dramatically reduce the file size.

  5. For GIF graphics, try reducing the number of colors used. The GIF format allows for a maximum of 256 colors, but often only 32 or 64 colors are necessary to obtain acceptable viewing quality. Most graphics software offers an "Optimize" function that will do this automatically.

  6. Scanners often use a resolution of 300 DPI (Dots Per Inch). This is ideal for printing out the resulting file at high quality, but causes the file size and dimensions to be much too large for online use. This is because many computer monitors display 72 DPI. Thus, the initial high resolution picture's height and width will increase by a factor of more than 4 and the picture area will increase by a factor of 17 to 1 when displayed on the Internet. If you have a program like Adobe Photoshop or photo software that comes with a scanner, you can shrink the width and height by a factor of 4.

No Errors - But Picture Doesn't Show or Disappears
If you do not get an error message, but you do not see your uploaded photo/doc or some photos "disappear", then:

  1. Files with the same name replace the existing file on your site.  Be careful to use a different filename for each file that you send to TeacherWeb.
  2. If you are viewing your web pages or photos for a 2nd time in your current Internet session, remember to click on Refresh/Reload (or Shift-Refresh, Shift-Reload) when you go to see the updated information whether its a web page or a graphic that's being displayed. For example, if you upload an edited version of an existing photo, you will not see the edited version unless you Refresh/Reload.

  3. Be careful about uploading a new file with the same name as an old file - especially if you use a digital camera that generates the same set of file names (e.g., Mvc-0001f.jpg) for each set of photos. If you don't take care, when you upload a new photo for one slot, you may overlay an old photo in another slot. 

 




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