Image, Photo Quality in IOS -

i building small image sharing app add text on image , can save album in ios. implemented use screenshot of screen , crop , save gallery.and reduced quality. when search other apps in appstore not that. after editing , saving gallery still image in super quality. example instagram , other photo editing app.

i have searched everywhere in stackoverflow , other websites im getting same screenshot concept.

uigraphicsbeginimagecontextwithoptions(imageview.bounds.size,true,2.0)         self.view.drawviewhierarchyinrect(self.view.bounds,            afterscreenupdates: true)          newimage =         uigraphicsgetimagefromcurrentimagecontext()         uigraphicsendimagecontext() 

how make quality?

using line of code scaling image losing quality.

uigraphicsbeginimagecontextwithoptions(imageview.bounds.size,true,2.0) 

try this:

uigraphicsbeginimagecontextwithoptions(imageview.bounds.size,true,1.0) 

this make sure image same scale, meaning not lose quality.