Removing images from PDF page on iOS

To remove all images from a document page.

Obj-C

PTPDFDoc *doc = [[PTPDFDoc alloc] initWithFilepath: filename];
PTPage *page = [doc GetPage:1];

PTElementWriter *writer = [[PTElementWriter alloc] init];
PTElementReader *reader = [[PTElementReader alloc] init];
[reader Begin: page];
[writer Begin:page placement:e_ptreplacement page_coord_sys:NO compress:YES];

PTElement *element;	
while ((element = [reader Next])) 	// Read page contents
{
    switch ([element GetType])
    {		
        case e_ptimage: 
        case e_ptinline_image: 
            // remove all images by skipping them			
            break;
        default:
            [writer WriteElement: element];
    }
}

[writer End];
[reader End];

Swift

let doc: PTPDFDoc = PTPDFDoc(filepath: filename)
let page: PTPage = doc.getPage(1)

let writer: PTElementWriter = PTElementWriter()
let reader: PTElementReader = PTElementReader()
reader.begin(page)
writer.begin(page, placement: e_ptreplacement, page_coord_sys: false, compress: true)

while let element = reader.next()
{
    switch element.getType()
    {
        case e_ptimage, e_ptinline_image:
            // remove all images by skipping them
            break
        default:
            writer.write(element)
    }
}

writer.end()
reader.end()

PDF Editor (Programmatic) Full code sample which strips all images from the page and changes text color to blue.