Resizing Images Without Losing Quality
Have you ever spent hours on a document making sure the layout was just right only to have it rejected by your ISP when you try to email it to a coworker because the file size is too large? Or perhaps you have struggled to post a file to the Internet for students because the file is so large (even when compressed) that you could take a vacation and come back to it still uploading. File size can be a BIG problem when it comes to collaborating with colleagues, sharing student work with parents, and transferring files home to complete school assignments.
Pictures Can Inflate the Size of a File
Often the reason a document size inflates is because of the pictures included in the file, especially photographs. Today, digital cameras take such high-quality images that only a few images inserted into a document can cause a file to bloat in size. There are several ways that you can reduce the file size of a document, poster, PowerPoint presentation, or webpage, especially if it contains pictures.
Compress an Image within Microsoft Office Program
Microsoft Office includes a tool that you can use to reduce the size of images in a document. This tool can quickly deflate the size of a file. If your document is to be viewed on screen or does not need to print at a high-resolution this can be a viable solution. To compress the images within the Microsoft Office 2007 or 2010 program:
- Select an image within the document.
- Choose the Compress Pictures command from the Adjust group on the Picture Tools Format tab.
- Select the desired options and click OK.
- Save a copy of your document.
NOTE: TechnoKids often does not use this compression option because it can make pictures when printed appear “mushy” when printed at a high-resolution.
Compress an Image with Windows Image Resizer
Another option that was first developed by Microsoft for Windows XP is the Image Resizer PowerToy. It has now been revamped to work beautifully with Windows Vista and Windows 7. This FREE program allows you to quickly resize an image or batch of images with just a few simple clicks.
For example, the image on the left is almost 2MB in size, the image on the right is 45KB! The great news is that visually, the pictures will look the same when printed at a high-resolution.
There are many programs that can compress an image to make it easy for someone to send a picture as an email attachment or post a picture to a web page. However, often the compressed picture will pixelate if it is resized too large when inserted into a document. The Windows PowerToy and Image Resizer for Windows offer the unique advantage of small file size paired with scalability. The picture can be scaled to fill an entire Microsoft Word page or PowerPoint slide without loosing its sharpness.
To compress the images using the Image Resizer for Windows:
- Install the Windows PowerToy (click the PowerToys tab) or Windows Vista and Windows 7 Image Resizer.
- Open the folder that contains the pictures you want to resize. In Thumbnail view, right-click any picture you want to resize, and then click Resize Pictures from the Windows Explorer context menu.
- To resize a sequence of photos at once, click the first photo, hold down the SHIFT key, and then click the last photo in the sequence.
- To resize non-sequential photos, click the first photo, and then hold down the CTRL key while you click the other pictures you want to resize.
- Custom: This option lets you manually set the size you want for your photos.
- Make pictures smaller but not larger: This option constrains resizing to only sizes smaller than the original photo.
- Resize the original pictures (don’t create copies): This option permanently applies resizing to your original photo.