Export resolution of an Image

  • Hi All,

    I am working on a drawing application (like Sketch in Developer
    examples). In which I am exporting the drawn strokes to different
    formats like JPEG, TIFF, PNG etc, using
    + (NSData *)representationOfImageRepsInArray:(NSArray *)imageReps
    usingType:(NSBitmapImageFileType)storageType properties:(NSDictionary
    *)properties

    Now my question is, how can I get different resolution images (of
    JPEG, TIFF, PNG etc with different dpi)?

    Thanks
    Kishore.
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