Is it possible to compress a photo to a certain size in memory?

Question

Android

For example, there is an original photo of 1mb and I want it to be 300kb in size. Maybe there is something similar? Maybe there are libraries?

Answer 1

Of course, there are libraries for image compression, for example:
1) https://github.com/facebookincubator/spectrum
2) https://github.com/zetbaitsu/Compressor
And there are even standard Android tools, dig towards Bitmap , BitmapFactory