Apple

use scripting additions

use framework "Foundation"

use framework "AppKit"

on jpegFromPath:imagePath compressFactor:compFactor -- 0.0 = max compression, 1.0 = none

-- build destination path

set pathNSString to current application's NSString's stringWithString:imagePath

set destPath to pathNSString's stringByDeletingPathExtension()'s stringByAppendingPathExtension:"jpg"

-- load the file as an NSImage

set theImage to current application's NSImage's alloc()'s initWithContentsOfFile:imagePath

if theImage = missing value then return false

-- get bitmap as data

set theData to theImage's TIFFRepresentation()

-- make imagerep from data

set newRep to current application's NSBitmapImageRep's imageRepWithData:theData

-- turn the imagerep into JPEG data

set theData to (newRep's representationUsingType:(current application's NSJPEGFileType) |properties|:{NSImageCompressionFactor:compFactor, NSImageProgressive:false})

-- write it to disk

set theResult to (theData's writeToFile:destPath atomically:true)

return (theResult = 1)

end jpegFromPath:compressFactor:

its jpegFromPath:(POSIX path of (choose file)) compressFactor:1.0

When we copy a chart from Numbers, the clipboard is filled with these blocks of datas :

{{«class PNGf», 32844}, {«class 8BPS», 251290}, {GIF picture, 13608}, {«class jp2 », 24902}, {JPEG picture, 17032}, {TIFF picture, 435374}, {«class BMP », 432054}, {«class TPIC», 182620}}

I'm wondering if there is a way to grab the TIFF component and convert it into jpeg without using Preview + GUI scripting.

I assume that something like :

use scripting additions

use framework "Foundation"

use framework "AppKit"

on jpegFromPath:thePicture targetPath:thePath compressFactor:compFactor -- 0.0 = max compression, 1.0 = none

set destPath to current application's NSString's stringWithString:thePath

-- load the file as an NSImage

set theImage to current application's NSImage's alloc()'s initWithContentsOfFile:imagePath # Need to be edited