Instructions

• Explanation:
  • You will need to use images in e-mails, social sites (Facebook, XTwitter, your own Website, PowerPoint presentations, Word documents, etc.
  • When you use an image (graphic or photograph), the original file may be very large (from 500KB to 5000KB)=(from 0.5MB to 5MB).
    • See also:  Units of Measure ...
  • The larger the file, the more time it takes to transfer that file.  This slows down the communication and uses up data bandwidth, which is particularly important for people with a slow Internet connection or WiFi connection or for people using a mobile device.
  • The larger the file, the more storage space is required.  This files takes hard disk space on your computer or the network's computer or the Web server's computer or the e-mail server's computer or some other computer.  This is most important for mobile devices (cellphones, tablets, USB memory, etc.) which have a more limited data storage capacity.
  • In most cases, the recipient will not be able to tell (by looking at the image) if the file is large or small.  The bandwidth usage and storage requirements have been wasted.
• References:
  • Graphics Topics ...
    • Always use PNG, or JPG (= JPEG), or GIF
    • Never use BMP, PCX, TIFF, etc...
  • Image Size - (shrink images for e-mail and Web pages)
  • File size limit ...
    • An example.  Started with an image of 4177KB (=4MB) and reduced it to 176KB (=4% of original size).
• Instructions for this lab:
  1. Part 1 (individually)
  1. Find a large image (of at least 2MB).  You can use a digital camera, your smartphone, the Internet, etc...
     Make sure your original image file is at least 2MB (>=2000KB).
  2. Make a backup copy of your image.  There is the real possibility that you will need to start over and try again.
  3. Use an image editing program.
  4. Reduce the size of the image to about 100KB (= 0.100MB).
     Warning!  Do not make the image TOO small.  If it looks really bad, try making it a little bigger (e.g. 125KB, 150KB, 200KB).
  5. Create a Word document (with a Cover Page) and create a numbered list to explain step-by-step how you reduced the size of the image.
     • Create a numbered list to explain step-by-step how you reduced the size of the image. 
       • This list will be detailed instructions that anyone could follow in order to change the size of an image.
     • Insert the new (small) image into your Word document.
     • Do not insert the original (huge) image into your Word document.
  6. Include the following details.
     1. The source of the original image (e.g.  your digital camera, your smartphone, the URL on Internet, etc.). 
        • Include details like the type of camera or cellphone or the exact URL where you found the file.
     2. The size of the original image.   (MB and KB).  (Please do not give the size in cm or in.)
     3. The size of the new image.   (MB and KB).  (Please do not give the size in cm or in.)
     4. How much difference can you see in the quality of the image?
     5. Will this new image be adequate for e-mail, Web, PowerPoint?
  7. Upload your Word document (which includes your edited image).
     Also include your answers for the questions in "Part 2" (below).
  2. Part 2 (as a group)
     1. What is the current (original) size of your Project#2 PowerPoint file (PPTX)?
     • _____ KB (kilobytes) = _____ MB (megabytes) 
     2. Use the technique from Part 1 (above) to reduce the size of all of the graphics included in your Project#2 PowerPoint file (PPTX).
     3. Edit your Project#2 PowerPoint file (PPTX) and delete all of the original graphics and replace them with the new, smaller graphics.
        Make sure that the picture quality is still good for the in-class presentation you will make.
     4. What is the new size of your Project#2 PowerPoint file (PPTX)?
     • _____ KB (kilobytes) = _____ MB (megabytes)
     • Make sure not to exceed 5 MB for your PPTX.
     5. Upload the new (revised) Project#2 PowerPoint file (PPTX) to Lea. 
        ("MyDawson" | "Léa, the Omnivox Classroom" | "Projects" | "Project #2 - A Case (PPT) ")
        The date and time of your newest upload will be recorded by Lea.
        Each person in the group must (again) upload the Project#2 PowerPoint file (PPTX) to Lea.
     6. Note Also:  You may also make corrections/improvements to your Word document and upload your new (revised) Word document for "Project #2 - A Case (DOC) "
     7. If there is a significant change to the appearance or content of your PowerPoint document (or your Word document), your group will also need to submit a new printout.