Batch It! Pro allows you to resize your images 4 ways, by pixels (upsize and downsize), by percentage (upsize and downsize), by ratios (upsize and downsize supported), by cropping and in frames.

The In Frame method is a much requested feature which was introduced in Batch It! Pro v4.0. This method allows the system to create a frame based on the Width and Height dimensions and by setting the frame background color would resize all images so that it will fit within the frame. All images are resized while maintaining Ratio Aspects and in the center of the frame. We are made aware that some programs online and offline which requires all images to be of fixed dimensions or they would get truncated or can squashed. Using the In Frame method would allow all images to be rendered perfectly each time and every time.

Upsized images may degrade in image quality due to the lack of details and depending on how much larger the upsizing is.

Batch It! Pro offer 14 resampling methods. Each offering a different algorithm in getting you that picture perfect resized images.
 

We will spare you the complex mathematical computation in the various resampling method and just mentioned that each method would employ certain degree of color matching and averaging to select the best match. A degree of blur effect would be added to reduce the effects of pixelization.

For Best Image Quality use, Lanczos3, Hermite, Bell, BSpline, Mitchell, Nearest, Bilinear or Bicubic.
 
If you need a faster image loading especially for small thumbnails where image quality is not that critical, use Triange, Linear or FastLinear.
 
For Black on White image, use ProjectBW and for White on Black image, use ProjectWB. These basically set the images to black and white images which is good for black and white documents.

This sets the JPEG, JPEG 2000 or PNG image quality in percentage. Because of the lossy compression algorithm employed by JPEG, each time an image is worked on, the image quality would degrade and as such, Batch It! Pro would load and transform each image to Bitmap which uses a lossless compression algorithm to reduce the image degrading. And as such, all image saved would be considered new.

A 100% JPEG Quality does not equate to exactly the same quality of the original as the image quality can be perceived as improved or degraded depending on the resampling method employed. As such, at 100% the image file size could increase.
 
'As Is' would use a prediction algorithm to determine the original image format.

We recommend a JPEG Quality of between 75 to 95 as the best settings as it would represent the best mix of image file size and image quality.

For JPEG 2000 images, feel free to set JPEG Quality down to as low as you want to so as to reduce image file size. Because of the wavelet technology algorithm, you will not notice any significant image quality loss as compared to the JPEG counterpart.

The Dots Per Inch option is usually not relevant unless you are using the images on desktop publishers or word processors to determine the image dimensions on the page. The higher the DPI, the smaller the image would appear on these media.

Monitors usually have fixed DPI and would use the image pixel size to determine image sizes on screen. Modern printers would have interpolation algorithm to upsize or downsize images to fit to the page and would usually ignore the image DPI settings.

IPTC Headers are used publishing houses to embed image description and articles into images like news headlines. If you are concerned about file size, you can uncheck this option, this will reduce the image file size by about 16 to 37kb.

* To reduce image file size, uncheck both the 'Retain EXIF Header Info' and 'Keep IPTC Header' option.

This defines the actual directory in which to save the second resizing method generated images in. There are two options to defining this, one by using using the '...' button which would open up Folder Dialog which you can either navigate to an existing folder or create a new one and the other method is to use the pre-defined relative link by clicking on the chevron button.

The current pre-defined relative link is [source directory]\ which defines the actual directory in which the file is from. So if you are working with files from different sources and you want them saved in their original directory, you may use this option.

Remember to end all folders with '\'.