Find and Replace text in PDF file using C++

01_Find and Replace text in PDF files

Find and Replace text in PDF file using C++

Find-And-Replace-Text-In-PDF-Files.cpp

// Load PDF file
auto pdfDocument = MakeObject<Document>(u"SourceDirectory\\Sample 1.pdf");

// Create TextAbsorber object to find all instances of the input search phrase
auto textFragmentAbsorber = MakeObject<TextFragmentAbsorber>(u"Document");

// Accept the absorber for all the pages
pdfDocument->get_Pages()->Accept(textFragmentAbsorber);

// Get the extracted text fragments
auto textFragmentCollection = textFragmentAbsorber->get_TextFragments();

// Loop through the fragments
for (auto textFragment : textFragmentCollection)
{
	// Update text and other properties
	textFragment->set_Text(u"UPDATED TEXT");
	textFragment->get_TextState()->set_Font(FontRepository::FindFont(u"TimesNewRoman"));
	textFragment->get_TextState()->set_FontSize(22);
}

// Save the resulting PDF document.
pdfDocument->Save(u"OutputDirectory\\UpdatedDocument.pdf");

Find-And-Replace-Text-In-PDF-Page-Region.cpp

// Load PDF file
auto pdfDocument = MakeObject<Document>(u"SourceDirectory\\Sample 1.pdf");

// Create TextAbsorber object to find all instances of the input search phrase
auto textFragmentAbsorber = MakeObject<TextFragmentAbsorber>(u"Document");

// search text within page bounds
textFragmentAbsorber->get_TextSearchOptions()->set_LimitToPageBounds(true);

// specify the page region for TextSearchOptions
textFragmentAbsorber->get_TextSearchOptions()->set_Rectangle(MakeObject<Rectangle>(100, 100, 800, 700));

// Accept the absorber for first page of document
pdfDocument->get_Pages()->idx_get(1)->Accept(textFragmentAbsorber);

// Get the extracted text fragments
auto textFragmentCollection = textFragmentAbsorber->get_TextFragments();

// Loop through the fragments
for (auto textFragment : textFragmentCollection)
{
	// Update text and other properties
	textFragment->set_Text(u"UPDATED TEXT");
	textFragment->get_TextState()->set_Font(FontRepository::FindFont(u"TimesNewRoman"));
	textFragment->get_TextState()->set_FontSize(22);
}

// Save resulting PDF document.
pdfDocument->Save(u"OutputDirectory\\UpdatedDocument.pdf");

Find-And-Replace-Text-In-PDF-Page.cpp

// Load PDF file
auto pdfDocument = MakeObject<Document>(u"SourceDirectory\\Sample 1.pdf");

// Create TextAbsorber object to find all instances of the input search phrase
auto textFragmentAbsorber = MakeObject<TextFragmentAbsorber>(u"Document");

// Accept the absorber for second page of document
pdfDocument->get_Pages()->idx_get(2)->Accept(textFragmentAbsorber);

// Get the extracted text fragments
auto textFragmentCollection = textFragmentAbsorber->get_TextFragments();

// Loop through the fragments
for (auto textFragment : textFragmentCollection)
{
	// Update text and other properties
	textFragment->set_Text(u"UPDATED TEXT");
	textFragment->get_TextState()->set_Font(FontRepository::FindFont(u"TimesNewRoman"));
	textFragment->get_TextState()->set_FontSize(22);
}

// Save resulting PDF document.
pdfDocument->Save(u"OutputDirectory\\UpdatedDocument2.pdf");

Find-And-Replace-Text-In-PDF-Regex.cpp

// Load PDF file
auto pdfDocument = MakeObject<Document>(u"SourceDirectory\\Sample 2.pdf");

// Create TextAbsorber object to find all instances of the input search phrase
auto textFragmentAbsorber = MakeObject<TextFragmentAbsorber>(u"\\d{4} - \\d{4}"); // Like 1999-2000

// Set text search option to enable regular expression usage
auto textSearchOptions = MakeObject<TextSearchOptions>(true);
textFragmentAbsorber->set_TextSearchOptions(textSearchOptions);

// Accept the absorber for all pages of the document
pdfDocument->get_Pages()->Accept(textFragmentAbsorber);

// Get the extracted text fragments
auto textFragmentCollection = textFragmentAbsorber->get_TextFragments();

// Loop through the fragments
for (auto textFragment : textFragmentCollection)
{
	// Update text and other properties
	textFragment->set_Text(u"UPDATED TEXT");
	textFragment->get_TextState()->set_Font(FontRepository::FindFont(u"TimesNewRoman"));
	textFragment->get_TextState()->set_FontSize(22);
}

// Save resulting PDF document.
pdfDocument->Save(u"OutputDirectory\\UpdatedDocument.pdf");