how to do this two things...

hi everybody
i am not very good at computer and software but now i have something which is very messy to deal with.

i have a number of photos on hand to work with, which are more than three thousands, but they all have different and bizarre filenames that i have to change them all into logical name. For example. 0001.jpg 0002.jpg 0003.jpg..etc....... and the photos are very large and i want to have all of them reduced to 20-30% of the original. I have three thousands photos but i will go mad to do all these things one by one. Are there any freeware that can help with this big task?

Thanks. all

Do you want to reduce file size, or overall resolution? IrfanView can do batch conversions and renames.

voyagerfan99 said:

Do you want to reduce file size, or overall resolution? IrfanView can do batch conversions and renames.

Click to expand...

thanks i'll try. is it a freeware?

kenny1999 said:

thanks i'll try. is it a freeware?

Click to expand...

Yes.

http://www.irfanview.com/

You could also use Zoner Photo Studio Free

http://www.zoner.com/ww-en/download-free-photo-program