Find Open-Source Image Compressor for Ubuntu/Windows 7

[gurudon]

1.Hey friends I Want to Compress the image in order upload them in my website. I have scanned them now what i need to do is to reduce their size. For that i need open source software to compress them. so, will anybody help me for finding it.

2. Next problem is i have made graph using geogebra. So, i need to upload them too. But i don't have idea that which size will be best (pixel,width, breadth) and format like (.png, .eps, .jpg)

I will be thankful if anybody suggest me.

Note: Software that is supported by Ubuntu or Windows 7 (anyone).

 

[Borek]

GIMP comes to mind.

Format depends on the type of graph, in most cases I am using 256 color png (or even less color where possible). No eps, and graphs are usually line art which doesn't get compressed well by jpg, too many artifacts. Max width depends on the page design, but I would not use anything wider than 800 pixels, you don't want people to have to scroll page to sides to be able to see everything.

 

[DavidSnider]

Graphs would be ideally compressed by vector graphics formats (I.E. .svg) and would scale to larger resolutions without increasing file size. Most browsers support them these days too.

EDIT: Oh, sorry, I should have read better. I didn't realize you had scanned them in. Ideally you'd want to use just the raw data to generate the SVG. Some programs can convert from bitmap to Vector, but it usually doesn't do it in a very intelligent way.

 

[gurudon]

thanx a lot. do you have any idea regrading open source image compressor?

 

[LudusRex]

Hello there,

I understand your need for an open-source image compressor for Ubuntu and Windows 7. There are several options available that you can consider.

For Ubuntu, you can try using GIMP (GNU Image Manipulation Program) which is a free and open-source software for image editing and compression. It supports various file formats and has a built-in compression tool that allows you to reduce the size of your images.

Another option for Ubuntu is ImageMagick, a command-line tool for image manipulation and compression. It also supports various file formats and can be used for batch processing of images.

For Windows 7, you can try using IrfanView, a free and lightweight image viewer and editor. It also has a built-in compression tool that allows you to reduce the size of your images.

As for your question about the size and format of your images for uploading, it depends on the requirements of your website. Generally, .jpg or .png formats are preferred for web images, and the size should be optimized for web viewing. You can try experimenting with different sizes and formats to see which one works best for your website.

I hope this helps. Best of luck with your website!