7 Answers to the Most Frequently Asked Questions About Image Resizer

image editing software

Searching far and wide has eventually led me to find the 7 most common questions people will ask before trying out an image and photo resizer for the first time! Let’s guarantee that you jump-start this beautiful and meaningful journey!

1) What are the Most Common Image File Formats that You Can Use with an Image Resizer?

There are numerous image file types, so it can be challenging to know which file type fits your image needs. Some image types, such as TIFF, are best for printing, while others, JPG or PNG, are best for web graphics.

The following list outlines some common file types and provides a brief description of how to utilize special features in common image formats:

TIFF (.if, .tiff)

TIFF or tagged image file formats are lossless image files, which means they bring the full image quality and information (although there are options for compression). It allows even very high-quality images with large file sizes.

  • Compression: Lossless – no compression. Very high-quality images.
  • Use of the best: high-quality prints, commercial publications, archival copies

Bitmap (.bmp)

Microsoft developed BMP, or bitmap image file, for Windows. There is no compression or data loss with BMP files, allowing images to have very high quality but very large file size. Since BMP is a proprietary format, TIFF files are more flexible in most cases.

  • Compression: Nothing
  • This is for the best: high-quality scans, archival copies.

JPEG (.jpg, .jpeg)

JPEG, which is used for joint photographic experts, is often considered a “harmful” format due to the compression to create a smaller file. Compression hurts quality but this loss is usually overlooked. JPEG files are ubiquitous on the Internet, and JPEG is a popular format for digital cameras – making it ideal for web use and non-commercial print.

  • Compression: Lossy – Some file information is compressed or lost
  • For the ultimate: web images, non-commercial printing, e-mail, PowerPoint
  • Unique properties: editing dobs can choose the amount of compression while saving in image editing programs like Promo or GIMP.

GIF (.gif)

GIF or Graphics Interchange Format files are widely used for web graphics as they are limited to only 256 colors, can allow for transparency, and can be animated. GIF files are usually small and very portable.

  • Compression: Lossless – Compression without losing quality
  • This is for the best: web images.
  • Special properties: can display animation and save transparent background.

PNG (.png)

PNG or portable network graphics files are a lossless image format designed to be modified initially and converted to a gif format. PNG Files GIF Unlike the 256 colors supported by it, it can handle up to 16 million colors.

  • Compression: Lossless – Compression without losing quality
  • Use to Achieve the Very Best: web images.
  • Special properties: Preserve transparency


An EPS or encapsulated PostScript file is a common vector file type. EPS Files can be opened in many instance applications such as Adobe Illustrator.

  • Compression: None – uses vector information.
  • Use this format for the best: vector artwork, paintings.
  • Special properties: save vector information

RAW image files (.raw, .cr2, .nef, .orf, .sr2, and more)

RAW images are images created by an unprocessed camera or scanner. Many digital SLR cameras can shoot in RAW, whether it’s.raw, .cr2, or .nef. These RAW images are the equivalent of digital negatives, meaning they contain a lot of image information but still need to be processed in an editor like Adobe Photoshop or Lightroom.

  • Compression: Nothing
  • For the best: photography
  • Special Features: Metadata, processed, saves a lot of information

2)  Do You Really Have to Edit All Your Photos with an Image Resizer?

In short, yes. It’s best to be spot-on when taking the image with the camera. 

However, editing and using an image resizer is how it all comes together. This is how it transforms the image. We finalize the image by deciding what size the photo must be. This will depend on where you plan on posting the picture. 

That’s why it’s best to work with a free image resizer online. It’s also critical that we use an image resizer to work for all if not most standard-size images. This will ensure that you can readily share on any social media platform. Some photographers are more artistic than their editing, and some are cleaner. This is really just a personal choice and will come with time.

Regardless of your style, the adjustments in the size of the photo are going to make it appear polished. This is a way to guarantee that your image is compelling and leaves an impact on its viewers.

3) What Does it Mean to Save an Image with Transparency?

  • The left image is in a file format that does not support transparency and displays an unwanted white background.
  • The image on the right was saved using a supported format with transparency and looks very crisp and clean on the colored background.

3 file types that support transparency are TIFF, PNG, GIF.

4) What is the Resolution?

Image resolution in PPI refers to how many pixels per inch.

Higher resolution means more pixels per inch (PPI), resulting in more pixel information and higher quality, crisp image.

When you change an image’s resolution, you’re saying how many pixels you want in every inch of the image.

Rule of thumb resolution: Always try the image at the highest resolution/quality when scanning or photographing.


Better a poor horse than no horse at all. For image editing applications like the completely free Promo.com photo & image resizer tool, it’s much easier to discard unwanted image information (reduce the size of an image) than create a piece of new pixel information (increase the size of the image).

5) How Do I Use an Image Resizer to Adjust the Size of My Images?

Not all of our images are the exact size they should be. It’s essential to understand how to resize an image properly. 

When you resize an image, its pixel information changes. For example, during compression, any unreliable pixel information will be deleted by a photo/image resizer tool such as Promo.com offers for free. 

When enlarging an image, the photo editor must create and add new pixel information – based on its best guess – to achieve larger sizes, which usually results in a very pixelated or very soft and blurred-looking image.

This is why it is easier to resize an image than to enlarge it. If an image is required for high-quality (publishing) or large format (poster) prints, make sure to use the highest resolution and quality.

6) How Does Resolution Affect Printing?

  • 72ppi: The document’s size is so large that it does not fit off the 8.5 x 11 sheet. The print quality is deficient, making the image look too blurry or “soft.”

The document size for 150ppi: 8.5 x 11 sheets are still too large, and the quality is moderate, and the image looks acceptable but not very desirable.

  • 300ppi: The image fills almost the entire sheet of paper, and the print quality is very good with crisp, sharp details.
  • 600ppi: Image is significantly lower than other files, but the quality is exceptionally high.

So, which to choose? 

It’s important to remember that the key to printing images is to find the best resolution that will produce both the size and quality you need.

7)  How Does Resolution Affect Images that You Post on Social Media Platforms?

Many people believe that lowering the image’s resolution reduces the foliage’s size, shortening loading speed on the web. 

While it is true that small file sizes can load quickly, the resolution of your image has nothing to do with its file size.

In fact, the file size of an image depends entirely on its pixel dimensions. That is, the number of pixels in width and the number of pixels in height.

Changing the print resolution does not change the number of pixels, therefore affecting the file size.

Final Thoughts on Image Resizer Tool

The best image resizer for your images is going to be the one with the highest quality. It should be swift. You must use a highly scalable photo & image resizer tool that can resize your images in seconds! There are many out there that are easy to use. 

However, not all of the available options for free photo resizers are equal. But a simple Google search should yield the top results for an image resizer tool. Of course, you can always give Promo.com image resizer a try. 

You’ll just upload your image and enter the target size. It’s that simple! Works anywhere.