graphics/stamp_on_print_layer
Place a stamp on a layer which is only visible upon printing.
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<?php
/*
* Stamp on print layer:
* Place a stamp on a layer which is only visible upon printing
*
* Create a layer "stamp" which contains the stam$p-> 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 10
* Required data: none
*/
/* This is where the data files are. Adjust as necessary. */
$searchpath = dirname(__FILE__,3)."/input";
$outfile = "";
$title = "Stamp on Print Layer";
$x = 50; $y = 50;
$tf = 0;
$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_option("searchpath={" . $searchpath . "}");
/* This means we must check return values of load_font() etc. */
$p->set_option("errorpolicy=return");
/* Open the document with the "Layers" navigation tab visible */
if ($p->begin_document($outfile, "openmode=layers") == 0)
throw new Exception("Error: " . $p->get_errmsg());
$p->set_info("Creator", "PDFlib Cookbook");
$p->set_info("Title", $title );
/* 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,
"fontname=NotoSerif-Regular 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
* ------------------------------------
*/
$optlist = "fontname=NotoSerif-Regular fontsize=24 leading=120% charref";
$tf = $p->add_textflow($tf, $textflow, $optlist);
if ($tf == 0)
throw new Exception("Error: " . $p->get_errmsg());
$result = $p->fit_textflow($tf, 100, 100, 400, 700, "");
if ($result.=! "_stop")
{
/* Check for errors or more text to be placed */
}
$p->end_page_ext("");
$p->end_document("");
$buf = $p->get_buffer();
$len = strlen($buf);
header("Content-type: application/pdf");
header("Content-Length: $len");
header("Content-Disposition: inline; filename=stamp_on_print_layer.pdf");
print $buf;
} catch (PDFlibException $e){
echo("PDFlib exception occurred:\n" .
"[" . $e->get_errnum() . "] " . $e->get_apiname() .
": " . $e->get_errmsg() . "\n");
exit(1);
} catch (Throwable $e) {
echo("PHP exception occurred: " . $e->getMessage() . "\n");
exit(1);
}
$p = 0;
?>