Objective-C Requires Chilkat v11.7.0+

Code Blocks and Code Spans in PDF to Markdown

See more PDF Text Extraction Examples

Demonstrates how monospaced text is converted by the "markdown" operation: a monospaced block becomes a fenced code block and a monospaced run inside a sentence becomes a code span. Set "code" to false to treat it as ordinary text. Objective-C

#import <CkoPdf.h>
#import <CkoJsonObject.h>

BOOL success = NO;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

//  The PDF used in this example is available at code_block.pdf

CkoPdf *pdf = [[CkoPdf alloc] init];
success = [pdf LoadFile: @"qa_data/pdf/code_block.pdf"];
if (success == NO) {
    NSLog(@"%@",pdf.LastErrorText);
    return;
}

CkoJsonObject *json = [[CkoJsonObject alloc] init];
CkoJsonObject *jsonOut = [[CkoJsonObject alloc] init];

success = [pdf ExtractText: @"markdown" jsonIn: json jsonOut: jsonOut];
if (success == NO) {
    NSLog(@"%@",pdf.LastErrorText);
    return;
}

NSLog(@"%@",@"---- default (code: true) ----");
NSLog(@"%@",[jsonOut StringOf: @"markdown"]);

[json UpdateBool: @"code" value: NO];
success = [pdf ExtractText: @"markdown" jsonIn: json jsonOut: jsonOut];
if (success == NO) {
    NSLog(@"%@",pdf.LastErrorText);
    return;
}

NSLog(@"%@",@"---- code: false ----");
NSLog(@"%@",[jsonOut StringOf: @"markdown"]);

//  Sample output:

//  ---- default (code: true) ----
//  <!-- page 1 -->
//  
//  # Extracting Text
//  
//  Load the PDF and call `ExtractText` with the operation and an options object. The result is returned as JSON:
//  
//  ```
//  new Pdf pdf;
//  success = pdf.LoadFile("report.pdf");
//  new JsonObject json;
//  new JsonObject jsonOut;
//  success = pdf.ExtractText("text",json,jsonOut);
//  println jsonOut.StringOf("text");
//  ```
//  
//  An empty options object extracts every page with the default clean-up. Set `pages` to limit the extraction.
//  ---- code: false ----
//  <!-- page 1 -->
//  
//  # Extracting Text
//  
//  Load the PDF and call ExtractText with the operation and an options object. The result is returned as JSON:
//  
//  new Pdf pdf; success = pdf.LoadFile("report.pdf"); new JsonObject json; new JsonObject jsonOut; success = pdf.ExtractText("text",json,jsonOut); println jsonOut.StringOf("text");
//  
//  An empty options object extracts every page with the default clean-up. Set pages to limit the extraction.