I have an app that I intend to distribute via the App store. Currently, the user purchases a license from the website, he receives a key via email and our web server validates the license key entered by the user in the application. Is it possible to distribute the app in the App Store without any change ie:the user purchase on app store,he receives a key.Can i distribute the trial version as free on App store?

My product does not have any inapp purchases.All i want to check is that if the user has purchased the app from the app store as i cant implement my own licensing scheme. I have seen many examples on receipt validation to achieve the same,All these tutorials are based on inapp purchases. Does apple provide a receipt when the user purchases the app from the app store? If yes,how can i sandbox test it?

I use the following code to draw a text on an NSImagefunc drawText(image :NSImage) ->NSImage { let text = text let font = NSFont(name:String(combo_font.stringValue), size: 50) let imageRect = CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height) let fontAttributes = [NSAttributedStringKey.font: font] let fontsize = (text as NSString).size(withAttributes: fontAttributes) let textRect = CGRect(x: (image.size.width/2-fontsize.width/2), y: image.size.height/2, width: fontsize.width, height: fontsize.height) let textStyle = NSMutableParagraphStyle.default.mutableCopy() as! NSMutableParagraphStyle let textFontAttributes = [ NSAttributedStringKey.font: font, NSAttributedStringKey.foregroundColor: NSColor.white, NSAttributedStringKey.paragraphStyle: textStyle ] let im:NSImage = NSImage(size: image.size) let rep:NSBitmapImageRep = NSBitmapImageRep(bitmapDataPlanes: nil, pixelsWide: Int(image.size.width), pixelsHigh: Int(image.size.height), bitsPerSample: 8, samplesPerPixel: 4, hasAlpha: true, isPlanar: false, colorSpaceName: NSColorSpaceName.calibratedRGB, bytesPerRow: 0, bitsPerPixel: 0)! im.addRepresentation(rep) im.lockFocus() image.draw(in: imageRect) text.draw(in: textRect, withAttributes: textFontAttributes) im.unlockFocus() return im }To prevent UI Freezing i do the long running operation in background threadoverride func controlTextDidChange(_ obj: Notification) { if(obj.object is NSTextField) { let textdata=obj.object as! NSTextField if(txtfield.identifier?.rawValue=="txt_field") { self.textdata=self.txtbox.stringValue DispatchQueue.global().async { self.img_view.image=self.drawText(image: NSImage(byReferencingFile: self.selectedfilename)!); } } } }When processing an Image of 391KB in size, the process takes too long to update the UI.How can i improve the performance.I just need to display the preview to the user,resizing image to a smaller size is also an option to improve the performance;But the same look should be achieved in full resolution image as well when processing later.

What i'm trying to achieve is to draw some text on an image and achieve the same scaling(look) on images of varying sizes.ExampleImage 1https://i.stack.imgur.com/SLZaV.pngImage 2https://i.stack.imgur.com/TyUYJ.pngI'm setting a reference image when the NSTextView text is changed by the user,this image will serve as the reference.When the user selects a different image from a listbox,the reference values will be used for font size calculation.override func controlTextDidChange(_ obj: Notification) { if(obj.object is NSTextField) { let txtfield=obj.object as! NSTextField if(txtfield.identifier?.rawValue=="txt_box") { setreferenceimage() updatepreviewimage() } } } func setreferenceimage() { if(textscalemode == 2 && previewimage != nil) { referenceimagesize = previewimage.size let fontAttributes = [NSAttributedStringKey.font: globalfont] let fontsize = (text as NSString).size(withAttributes: fontAttributes) referencetextsize=fontsize referenceimagepath=selectedfilename isreferenceset = true panel_refimage.isHidden=false } }Now when the user selects a different image i call the draw function which is supposed to scale the text.The font scaling is calculated like this var yratio:CGFloat = max(referenceimagesize!.height, referencetextsize!.height) / min(referenceimagesize!.height, referencetextsize!.height); var newheight:CGFloat = 0; newheight = image.size.height / yratio; font = NSFont(name:font!.fontName, size: newheight)! fontAttributes = [NSAttributedStringKey.font: font] fontsize = (text as NSString).size(withAttributes: fontAttributes)But this does not work .. see the samples belowThe first image is the reference image .. as you can see the second image text does not have the adequate spacing required from the lefthttps://i.stack.imgur.com/v75nM.jpghttps://i.stack.imgur.com/teDS1.jpg

I'm having issues with notarizing the app directly in Xcode.Even though i have acceped all agreements and updated the required banking info,the upload step get stuck at authenticating with Apple Service.So i'm trying to use alttool to notarize my app. Generated App specific password Using the following command But i keep getting the error my-MacBook-Pro:1.3 my$ xcrun altool --notarize-app --primary-bundle-id "me.myapp" --username me@live.com --password mypass --file "myapp.app" *** Error: Notarization failed for 'myapp.app'. *** Error: The operation couldn’t be completed. Is a directory Is a directory (21) { "_kCFStreamErrorCodeKey" = 21; "_kCFStreamErrorDomainKey" = 1; } I'm running Xcode 13.1 on macOS Monterey 12.0.1

I'm using the following code to encrypt data using AES algorithm with key as system serial and a string as iv This is the write function func writeStringToFile() { do{ let path = URL(fileURLWithPath: "/Users/Shared") let folderurl = path.appendingPathComponent("MYPATH") let systemserial=self.getsystemserial(); let paddedserial = systemserial.padding(toLength: 16, withPad: "X", startingAt: 0) let aes1 = try AES(key: paddedserial, iv: "mystrongpasscode") // aes128 let sdata = try aes1.encrypt(Array(mystring.utf8)) let writedata1 = Data(bytes: sdata) try FileManager.default.createDirectory(at: folderurl, withIntermediateDirectories: true) let filepath = folderurl.appendingPathComponent("MYFILE") try writedata1.write(to: filepath) } catch { } } This is the read function func readStringfromFile() -> String { do{ let path = URL(fileURLWithPath: "/Users/Shared") let folderurl = path.appendingPathComponent("MYPATH") let filepath = folderurl.appendingPathComponent("MYFILE") let text1 = try Data(contentsOf: filepath) let systemserial=self.getsystemserial(); let paddedserial = systemserial.padding(toLength: 16, withPad: "X", startingAt: 0) let aes1 = try AES(key: paddedserial, iv: "mystrongpasscode") // aes128 let decrypted = try aes1.decrypt(Array(text1)) return String(bytes: decrypted, encoding: .utf8)! } catch { return " " } } The function i use to get the system serial is the following func getsystemserial() -> String { guard case let platformExpert = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("IOPlatformExpertDevice") ), platformExpert > 0, let serialNumber = IORegistryEntryCreateCFProperty(platformExpert, kIOPlatformSerialNumberKey as CFString, kCFAllocatorDefault, 0).takeUnretainedValue() as? String else { return "" }; IOObjectRelease(platformExpert); return serialNumber } But the read and written strings are not matching. What am i doing wrong ?

Some users are reporting application crash - EXC_BAD_INSTRUCTION (SIGILL). This could not be reproduced on my M1 Mac running macOS Monterey.I'm unable to find the root cause of the issue.Please advice Error Report

I'm using the following code to Resize an NSimage func resizeinbuilt(withSize targetSize: NSSize) -> NSImage? { let frame = NSRect(x: 0, y: 0, width: targetSize.width, height: targetSize.height) guard let representation = self.bestRepresentation(for: frame, context: nil, hints: nil) else { return nil } let image = NSImage(size: targetSize, flipped: false, drawingHandler: { (_) -> Bool in return representation.draw(in: frame) }) return image } Strangely the saved image size in pixels is 400x400 even though on debugging I can clearly see the size as the 100x100 This is the save to disk code func saveimage(face:NSImage,imageURL:String,format:String) -> Bool { let cgRef = face.cgImage(forProposedRect: nil, context: nil, hints: nil) var newRep: NSBitmapImageRep? = nil if let aRef = cgRef { newRep = NSBitmapImageRep(cgImage: aRef) } newRep?.size = face.size ?? NSSize.zero switch format { case ".png": let filepath=URL(fileURLWithPath: imageURL+".png") let dataToSave = newRep?.representation(using: NSBitmapImageRep.FileType.png, properties: [NSBitmapImageRep.PropertyKey.compressionFactor : 1]) do { try dataToSave?.write(to: filepath) return true } catch { return false } case ".jpg": let filepath=URL(fileURLWithPath: imageURL+".jpg") let dataToSave = newRep?.representation(using: NSBitmapImageRep.FileType.jpeg, properties: [NSBitmapImageRep.PropertyKey.compressionFactor : 1]) do { try dataToSave?.write(to:filepath) return true } catch { return false } case ".tif": let filepath=URL(fileURLWithPath: imageURL+".tif") let dataToSave = newRep?.representation(using: NSBitmapImageRep.FileType.tiff, properties: [NSBitmapImageRep.PropertyKey.compressionFactor : 1]) do { try dataToSave?.write(to:filepath) return true } catch { return false } case ".bmp": let filepath=URL(fileURLWithPath: imageURL+".bmp") let dataToSave = newRep?.representation(using: NSBitmapImageRep.FileType.bmp, properties: [NSBitmapImageRep.PropertyKey.compressionFactor : 1]) do { try dataToSave?.write(to:filepath) return true } catch { return false } case ".gif": let filepath=URL(fileURLWithPath: imageURL+".gif") let dataToSave = newRep?.representation(using: NSBitmapImageRep.FileType.gif, properties: [NSBitmapImageRep.PropertyKey.compressionFactor : 1]) do { try dataToSave?.write(to:filepath) return true } catch { return false } default: return true } }

I'm using the following code to draw a text over PDF page.Everything works fine, but if you process a PDF with internal links eg: a Book with Content links to pages, the resultant PDF file seems to have the links stripped off.Why does this happen? let data = NSMutableData() let consumer = CGDataConsumer(data: data as CFMutableData)! let context = CGContext(consumer: consumer, mediaBox: nil, nil)! let pdffile=PDFDocument(url: input) for y in stride(from: 0, to: pagecount, by: 1) { let page: PDFPage = pdffile!.page(at: y)! var mediaBox = page.bounds(for: PDFDisplayBox.mediaBox) NSGraphicsContext.current = NSGraphicsContext(cgContext: context, flipped: false) let bounds = page.bounds(for: PDFDisplayBox.mediaBox) let size = bounds.size page.draw(with: .mediaBox, to: context) text.draw(in:drawrect,withAttributes:textFontAttributes); context.endPDFPage() } context.closePDF() try! data!.write(to: GetOutputFileName(inputfile: x), options[.atomicWrite]) What I have tried is saving the annotation of each page applying it before ending the page for annotation in pageannottaions                 {                     page.addAnnotation(annotation)                 } This also does not work.Please advice