> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/ios/get-started/samples/pdfredacttest.md). # PDFRedact Sample Obj-C code for using Apryse SDK to remove potentially sensitive content within PDF documents. Using 'pdftron.PDF.Redactor' makes sure that if a portion of an image, text, or vector graphics is Sample Obj-C code for using Apryse SDK to remove potentially sensitive content within PDF documents. Using 'pdftron.PDF.Redactor' makes sure that if a portion of an image, text, or vector graphics is contained in a redaction region, that portion is destroyed and is not simply hidden with clipping or image masks. Learn more about our [iOS SDK](/ios/guides.md). {% tabs %} {% tab title="Obj-C" %} {% code lineNumbers="true" %} ```objc //--------------------------------------------------------------------------------------- // Copyright (c) 2001-2024 by Apryse Software Inc. All Rights Reserved. // Consult legal.txt regarding legal and license information. //--------------------------------------------------------------------------------------- #import #import // PDF Redactor is a separately licensable Add-on that offers options to remove // (not just covering or obscuring) content within a region of PDF. // With printed pages, redaction involves blacking-out or cutting-out areas of // the printed page. With electronic documents that use formats such as PDF, // redaction typically involves removing sensitive content within documents for // safe distribution to courts, patent and government institutions, the media, // customers, vendors or any other audience with restricted access to the content. // // The redaction process in PDFNet consists of two steps: // // a) Content identification: A user applies redact annotations that specify the // pieces or regions of content that should be removed. The content for redaction // can be identified either interactively (e.g. using 'pdftron.PDF.PDFViewCtrl' // as shown in PDFView sample) or programmatically (e.g. using 'pdftron.PDF.TextSearch' // or 'pdftron.PDF.TextExtractor'). Up until the next step is performed, the user // can see, move and redefine these annotations. // b) Content removal: Using 'pdftron.PDF.Redactor.Redact()' the user instructs // PDFNet to apply the redact regions, after which the content in the area specified // by the redact annotations is removed. The redaction function includes number of // options to control the style of the redaction overlay (including color, text, // font, border, transparency, etc.). // // PDFTron Redactor makes sure that if a portion of an image, text, or vector graphics // is contained in a redaction region, that portion of the image or path data is // destroyed and is not simply hidden with clipping or image masks. PDFNet API can also // be used to review and remove metadata and other content that can exist in a PDF // document, including XML Forms Architecture (XFA) content and Extensible Metadata // Platform (XMP) content. void Redact(NSString* input, NSString* output, PTVectorRedaction *vec, PTAppearance *app) { PTPDFDoc *doc = [[PTPDFDoc alloc] initWithFilepath: input]; if ([doc InitSecurityHandler]) { [PTRedactor Redact: doc red_arr: vec app: app ext_neg_mode: NO page_coord_sys: YES]; [doc SaveToFile: output flags: e_ptlinearized ]; } } int main(int argc, char *argv[]) { @autoreleasepool { int ret = 0; [PTPDFNet Initialize: 0]; PTPDFRect * rect1 = [[PTPDFRect alloc] init]; [rect1 Set: 100 y1: 100 x2: 550 y2: 600]; PTPDFRect * rect2 = [[PTPDFRect alloc] init]; [rect2 Set: 30 y1: 30 x2: 450 y2: 450]; PTPDFRect * rect3 = [[PTPDFRect alloc] init]; [rect3 Set: 0 y1: 0 x2: 100 y2: 100]; PTPDFRect * rect4 = [[PTPDFRect alloc] init]; [rect4 Set: 100 y1: 100 x2: 200 y2: 200]; PTPDFRect * rect5 = [[PTPDFRect alloc] init]; [rect5 Set: 300 y1: 300 x2: 400 y2: 400]; PTPDFRect * rect6 = [[PTPDFRect alloc] init]; [rect6 Set: 500 y1: 500 x2: 600 y2: 600]; PTPDFRect * rect7 = [[PTPDFRect alloc] init]; [rect7 Set: 0 y1: 0 x2: 700 y2: 20]; PTVectorRedaction *vec = [[PTVectorRedaction alloc] init]; [vec add: [[PTRedaction alloc] initWithPage_num: 1 bbox: rect1 negative: NO text: @"Top Secret"]]; [vec add: [[PTRedaction alloc] initWithPage_num: 2 bbox: rect2 negative: YES text: @"Negative Redaction"]]; [vec add: [[PTRedaction alloc] initWithPage_num: 2 bbox: rect3 negative: NO text: @"Positive"]]; [vec add: [[PTRedaction alloc] initWithPage_num: 2 bbox: rect4 negative: NO text: @"Positive"]]; [vec add: [[PTRedaction alloc] initWithPage_num: 2 bbox: rect5 negative: NO text: @""]]; [vec add: [[PTRedaction alloc] initWithPage_num: 2 bbox: rect6 negative: NO text: @""]]; [vec add: [[PTRedaction alloc] initWithPage_num: 3 bbox: rect7 negative: NO text: @""]]; PTAppearance *app = [[PTAppearance alloc] init]; [app setRedactionOverlay: YES]; [app setBorder: NO]; [app setShowRedactedContentRegions: YES]; Redact(@"../../TestFiles/newsletter.pdf", @"../../TestFiles/Output/redacted.pdf", vec, app); NSLog(@"Done..."); [PTPDFNet Terminate: 0]; return ret; } } ``` {% endcode %} {% endtab %} {% tab title="Swift" %} {% code lineNumbers="true" %} ```swift //--------------------------------------------------------------------------------------- // Copyright (c) 2001-2019 by PDFTron Systems Inc. All Rights Reserved. // Consult legal.txt regarding legal and license information. //--------------------------------------------------------------------------------------- import PDFNet import Foundation // PDF Redactor is a separately licensable Add-on that offers options to remove // (not just covering or obscuring) content within a region of PDF. // With printed pages, redaction involves blacking-out or cutting-out areas of // the printed page. With electronic documents that use formats such as PDF, // redaction typically involves removing sensitive content within documents for // safe distribution to courts, patent and government institutions, the media, // customers, vendors or any other audience with restricted access to the content. // // The redaction process in PDFNet consists of two steps: // // a) Content identification: A user applies redact annotations that specify the // pieces or regions of content that should be removed. The content for redaction // can be identified either interactively (e.g. using 'pdftron.PDF.PDFViewCtrl' // as shown in PDFView sample) or programmatically (e.g. using 'pdftron.PDF.TextSearch' // or 'pdftron.PDF.TextExtractor'). Up until the next step is performed, the user // can see, move and redefine these annotations. // b) Content removal: Using 'pdftron.PDF.Redactor.Redact()' the user instructs // PDFNet to apply the redact regions, after which the content in the area specified // by the redact annotations is removed. The redaction function includes number of // options to control the style of the redaction overlay (including color, text, // font, border, transparency, etc.). // // PDFTron Redactor makes sure that if a portion of an image, text, or vector graphics // is contained in a redaction region, that portion of the image or path data is // destroyed and is not simply hidden with clipping or image masks. PDFNet API can also // be used to review and remove metadata and other content that can exist in a PDF // document, including XML Forms Architecture (XFA) content and Extensible Metadata // Platform (XMP) content. func Redact(input: String, output: String, vec: PTVectorRedaction, app: PTAppearance) { let doc: PTPDFDoc = PTPDFDoc(filepath: input) if doc.initSecurityHandler() { PTRedactor.redact(doc, red_arr: vec, app: app, ext_neg_mode: false, page_coord_sys: true) doc.save(toFile: output, flags: e_ptlinearized.rawValue) } } func runPDFRedactTest() -> Int { return autoreleasepool { var ret: Int = 0 do { try PTPDFNet.catchException { let rect1: PTPDFRect = PTPDFRect(x1: 100, y1: 100, x2: 550, y2: 600) let rect2: PTPDFRect = PTPDFRect(x1: 30, y1: 30, x2: 450, y2: 450) let rect3: PTPDFRect = PTPDFRect(x1: 0, y1: 0, x2: 100, y2: 100) let rect4: PTPDFRect = PTPDFRect(x1: 100, y1: 100, x2: 200, y2: 200) let rect5: PTPDFRect = PTPDFRect(x1: 300, y1: 300, x2: 400, y2: 400) let rect6: PTPDFRect = PTPDFRect(x1: 500, y1: 500, x2: 600, y2: 600) let rect7: PTPDFRect = PTPDFRect(x1: 0, y1: 0, x2: 700, y2: 20) let vec: PTVectorRedaction = PTVectorRedaction() vec.add(PTRedaction(page_num: 1, bbox: rect1, negative: false, text: "Top Secret")) vec.add(PTRedaction(page_num: 2, bbox: rect2, negative: true, text: "Negative Redaction")) vec.add(PTRedaction(page_num: 2, bbox: rect3, negative: false, text: "Positive")) vec.add(PTRedaction(page_num: 2, bbox: rect4, negative: false, text: "Positive")) vec.add(PTRedaction(page_num: 2, bbox: rect5, negative: false, text: "")) vec.add(PTRedaction(page_num: 2, bbox: rect6, negative: false, text: "")) vec.add(PTRedaction(page_num: 3, bbox: rect7, negative: false, text: "")) let app: PTAppearance = PTAppearance() app.setRedactionOverlay(true) app.setBorder(false) Redact(input: Bundle.main.path(forResource: "newsletter", ofType: "pdf")!, output: URL(fileURLWithPath: NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]).appendingPathComponent("redacted.pdf").path, vec: vec, app: app) print("Done...") } } catch let e as NSError { print("\(e)") ret = 1 } return ret } } ``` {% endcode %} {% endtab %} {% endtabs %} --- # Agent Instructions This documentation is published with GitBook. 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