graphics/stamp_on_print_layer
Place a stamp on a layer which is only visible upon printing
Create a layer "stamp" which contains the stamp. The layer properties are set to print, but not display the layer contents on screen. Create some standard text which is displayed and printed by default.
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* Stamp on print layer:
* Place a stamp on a layer which is only visible upon printing
*
* Create a layer "stamp" which contains the stamp. The layer properties are set
* to print, but not display the layer contents on screen.
* Create some standard text which is displayed and printed by default.
*
* Required software: PDFlib/PDFlib+PDI/PPS 7
* Required data: none
*/
package com.pdflib.cookbook.pdflib.graphics;
import com.pdflib.pdflib;
import com.pdflib.PDFlibException;
public class stamp_on_print_layer
{
public static void main (String argv[])
{
/* This is where the data files are. Adjust as necessary. */
String searchpath = "../input";
String outfile = "stamp_on_print_layer.pdf";
String title = "Stamp on Print Layer";
pdflib p = null;
final int x = 50, y = 50;
int tf = -1, font, stamplayer;
final String textflow =
"To fold the famous rocket looper proceed as follows:\n" +
"Take a DIN A4 sheet.\nFold it lenghtwise in the middle.\nThen, fold " +
"the upper corners down.\nFold the long sides inwards that the " +
"points A and B meet on the central fold.\nFold the points C and D " +
"that the upper corners meet with the central fold as well." +
"\nFold the plane in the middle. Fold the wings down that they close " +
"with the lower border of the plane.";
try {
p = new pdflib();
p.set_parameter("SearchPath", searchpath);
/* This means we must check return values of load_font() etc. */
p.set_parameter("errorpolicy", "return");
/* Open the document with the "Layers" navigation tab visible */
if (p.begin_document(outfile, "openmode=layers") == -1)
throw new Exception("Error: " + p.get_errmsg());
p.set_info("Creator", "PDFlib Cookbook");
p.set_info("Title", title + " $Revision: 1.3 $");
/* Load the font */
font = p.load_font("Helvetica", "unicode", "");
if (font == -1)
throw new Exception("Error: " + p.get_errmsg());
/* Start page */
p.begin_page_ext(0, 0, "width=a4.width height=a4.height");
/* ---------------------------------------------------------------
* Define the layer "stamp" to be hidden when opening the document
* (initialviewstate=false) and place the stamp on it.
* ---------------------------------------------------------------
*/
stamplayer = p.define_layer("stamp",
"initialviewstate=false initialprintstate=true");
p.begin_layer(stamplayer);
/* Fit a text line as outlines like a stamp in the specified box. The
* stamp will be placed diagonally from the upper left to the lower
* right (stamp=ul2lr).
*/
p.fit_textline("The Famous Rocket Looper", x, y, "font=" + font +
" strokecolor={rgb 1 0 0} textrendering=1 boxsize={500 750} " +
"strokecolor={rgb 0.5 0 1} stamp=ul2lr");
/* End all layers */
p.end_layer();
/* ------------------------------------
* Place some standard text on the page
* ------------------------------------
*/
String optlist = "fontname=Helvetica fontsize=24 encoding=unicode " +
"leading=120% charref";
tf = p.add_textflow(tf, textflow, optlist);
if (tf == -1)
throw new Exception("Error: " + p.get_errmsg());
String result = p.fit_textflow(tf, 100, 100, 400, 700, "");
if (!result.equals("_stop"))
{
/* Check for errors or more text to be placed */
}
p.end_page_ext("");
p.end_document("");
} catch (PDFlibException e) {
System.err.print("PDFlib exception occurred:\n");
System.err.print("[" + e.get_errnum() + "] " + e.get_apiname() +
": " + e.get_errmsg() + "\n");
} catch (Exception e) {
System.err.println(e.getMessage());
} finally {
if (p != null) {
p.delete();
}
}
}
}