PHP Requires Chilkat v11.7.0+

Replace PDF Text on Selected Pages Only

See more PDF Text Replacement Examples

Demonstrates the "pages" option, which limits the search for placeholders and labels to the given pages: "all" (the default), "first", "last", "odd", "even", or a list such as "1,3,5-9". The two-page order confirmation carries the same "Status:" label on both pages; the status is changed on page 2 only, then on both pages. Chilkat2 PHP

<?php

use Chilkat2\JsonObject;
use Chilkat2\Pdf;

// 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 order_confirmation.pdf

$pdf = new Pdf();
try {
    $pdf->LoadFile('qa_data/pdf/order_confirmation.pdf');

    $json = new JsonObject();
    $jsonOut = new JsonObject();

    // Both pages have "Status:   Pending".  With pages "2", only page 2 is searched.
    $json->UpdateString('pages', '2');
    $json->UpdateString('labels[0].label', 'Status:');
    $json->UpdateString('labels[0].value', 'Shipped');
    $pdf->TextReplace('check', $json, $jsonOut);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo 'pages 2: found on page(s) ', $jsonOut->StringOf('replacements[0].pages'), "\n";

// With every page searched, the default occurrence ("first") still replaces one -- the first in reading order.
$json->UpdateString('pages', 'all');
try {
    $pdf->TextReplace('check', $json, $jsonOut);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo 'pages all, first occurrence: found on page(s) ', $jsonOut->StringOf('replacements[0].pages'), "\n";

// Every occurrence on every page.
$json->UpdateString('labels[0].occurrence', 'all');
try {
    $pdf->TextReplace('apply', $json, $jsonOut);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo 'pages all, every occurrence: ', $jsonOut->IntOf('replacements[0].count'), ' replaced on page(s) ', $jsonOut->StringOf('replacements[0].pages'), "\n";

try {
    $pdf->WriteFile('qa_output/order_shipped.pdf');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// Sample output:

// pages 2: found on page(s) 2
// pages all, first occurrence: found on page(s) 1
// pages all, every occurrence: 2 replaced on page(s) 1,2