itextsharp可以支持覆盖文本吗？

Question

我必须将一些文字叠加到文字上。 itextsharp可以这样做吗？我创建了一个不必更改格式的表单，还包含一个变量。像这样

#include <iostream>
using namespace std;
typedef struct sentry sentry; 

struct stud{
    string name;
    char grade;
};

struct slist {
    int length;
    sentry *first;
    sentry *last;
};

struct sentry {
    slist *list;
    sentry *next;
    sentry *prev;
    stud *student;
};

int main(int argc, char** argv) {
    slist list;
    sentry *n;

    n = new sentry;

    // Full initialization of the header node.
    list.first = n;
    list.last = n;
    list.length = 0;

    n->prev = NULL;
    n->next = NULL;
    n->list = list->last;
    n->student->name = "test";
    n->student->grade = 'A';

    cout << n->student->name << '\n';
    cout << n->student->grade << '\n';

    return 0; 
}