I have an jpeg file of 300 dpi. I need to reduce it to 200dpi. How can I do that?
Do I need any specific application or it can be done using Picasa/paint/MS picture manager, if yes how? Thanks
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Go to Image > Resize > Change its resolution (dpi)
As I said the resolution in the Paint.NET is the DPI (pixel/inch)
I suggest using GIMP; it is a free image-editing solution, and it allows you to change the resolution, in pixels per inch, in both the x and y dimensions. I believe that this program can accomplish what you are looking for.
And I would take this one free tool: http://www.irfanview.com
To change DPI for the currently loaded image, click the "i" icon ("i" for information) on the IrfanView toolbar. Change the DPI, click OK, and save the image.
You can change the DPI of your jpeg image without an application using this free online tool:
I think the best way of doing is this is software independent and without installation processes.
online DPI converter
For resize an image I use Faststone Photo Resizer. It has an option for DPI.
I use Faststone Image Viewer https://www.faststone.org/FSViewerDetail.htm. This allows you to set DPI in both X & Y dimensions using the
Set DPI command from the
Edit menu. This is a lossless change i.e. does not recompress the image.