I have found the origin of the trouble. In the NSView's drawRect method, where I draw the image, I use
CGContextBeginTransparencyLayer(context, NULL); Draw image, Draw brackground color, Draw borders, Draw Shadow CGContextEndTransparencyLayer(context); Then the PDF file comes out uncompressed. Wrong. If I omit CGContextBeginTransparencyLayer/CGContextEndTransparencyLayer I get a well compressed PDF file. I suppose that PDF/X-3 doesn't support TransparencyLayer. So, is a way to save the PDF file as PDF/X-4? Regards -- Leonardo > Da: Gerd Knops <[email protected]> > Data: Thu, 27 Feb 2014 20:04:13 -0600 > A: Leonardo <[email protected]> > Oggetto: Re: Reduce PDF with QuartzFilter > > What worked for me in the past was to use > > QuartzFilter *myFilter=[QuartzFilter quartzFilterWithURL:[NSURL > fileURLWithPath:filterPath]]; > > and use that straight in the options dictionary. > > Gerd > > On Feb 27, 2014, at 6:05 PM, Leonardo <[email protected]> wrote: > >> In the past I successfully created and used QuartzFilter from within my >> Cocoa app for OS X and saved pdf files. But now it seems that I am missing >> something. >> >> I have just created 2 filters with ColorSync Utility, one with >> ImageJPEGCompress Compression Quality 1 (MinComp.qfilter) and one with >> ImageJPEGCompress Compression Quality -1 (MaxComp.qfilter). >> If I use them from within the application Preview, they work well. >> I get a 146KB file and a 1.5MB file. >> >> Now I use the filters from within my app, this way: >> filePath = [myBundle pathForResource:@"MinComp" ofType:@"qfilter"]; >> filterDict = [NSMutableDictionary dictionaryWithContentsOfFile:filePath]; >> filter = [[QuartzFilterManager filterManager] importFilter:filterDict]; >> options = [NSDictionary dictionaryWithObject:filter forKey:@"QuartzFilter"]; >> saved = [pdfDoc pdfPath withOptions:options]; >> >> I save 2 pdf files containing the same image I used in the app Preview (see >> above), one using the min filter, and one using the max filter >> The 2 PDF have the same byte size: 2.3MB. And I can't found the bug. >> >> I work with Xcode 5 and OS X 10.8.5. Target: OS X 10.8. >> I have linked the libs: Quartz.framework, QuartzCore.framework, >> AppKit.framework... >> That's my MaxComp filter. Above it's my code. What do I miss? >> >> >> <?xml version="1.0" encoding="UTF-8"?> >> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" >> "http://www.apple.com/DTDs/PropertyList-1.0.dtd";> >> <plist version="1.0"> >> <dict> >> <key>Domains</key> >> <dict> >> <key>Applications</key> >> <true/> >> <key>Printing</key> >> <true/> >> </dict> >> <key>FilterData</key> >> <dict> >> <key>ColorSettings</key> >> <dict> >> <key>ImageSettings</key> >> <dict> >> <key>Compression Quality</key> >> <real>-1</real> >> <key>ImageCompression</key> >> <string>ImageJPEGCompress</string> >> <key>ImageScaleSettings</key> >> <dict> >> <key>ImageResolution</key> >> <integer>300</integer> >> <key>ImageScaleFactor</key> >> <real>0.0</real> >> <key>ImageScaleInterpolate</key> >> <integer>2</integer> >> <key>ImageSizeMax</key> >> <integer>0</integer> >> <key>ImageSizeMin</key> >> <integer>0</integer> >> </dict> >> </dict> >> </dict> >> <key>PDF/X-3 Settings</key> >> <dict> >> <key>AddBleedBox</key> >> <true/> >> <key>AddTrimBox</key> >> <true/> >> <key>FlattenTransparency</key> >> <true/> >> <key>FlattenTransparencyResolution</key> >> <array> >> <real>300.0</real> >> <real>300.0</real> >> </array> >> <key>Info</key> >> <string></string> >> <key>OutputCondition</key> >> <string>CGATS TR 001 SWOP</string> >> <key>OutputConditionIdentifier</key> >> <string>CGATS TR 001</string> >> <key>RegistryName</key> >> <string>http://www.color.org</string> >> <key>Trapped</key> >> <true/> >> </dict> >> </dict> >> <key>FilterType</key> >> <integer>1</integer> >> <key>Name</key> >> <string>MaxComp</string> >> </dict> >> </plist> >> >> >> Regards >> -- Leonardo >> >> >> _______________________________________________ >> >> Cocoa-dev mailing list ([email protected]) >> >> Please do not post admin requests or moderator comments to the list. >> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >> >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/cocoa-dev/gerti-cocoadev%40bitart.com >> >> This email sent to [email protected] > _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
