How to set file title when creating PDF file in PHP

In the modern software development process, the creation and operation of PDF files is a common occurrence. In order to facilitate the operation of PDF, many program developers use PHP code to automatically generate PDF files. But when problems arise, most programmers don't know how to set the title of PDF. This is a common but easily overlooked problem in PDF operations.

The PDF file title is a very important element, which is actually the name of the PDF file. PDF file titles can provide users with convenience, allowing them to better identify the file and facilitate storage and retrieval. In order to set the PDF file title, you need to operate it through the PHP program in the following way.

Step 1: Create a PDF file

Before using a PHP program to generate a PDF file, you need to prepare various configuration information for the PDF file. For example, setting the page size, setting the paper orientation, setting the font, setting the font size, etc. These are all configuration information required in the PDF file creation process.

After completing the configuration, you can use PHP's PDF library to generate PDF files. The PDF library is widely used in PHP5 and PHP7 and provides all the functions required for PDF file generation. At the same time, the PDF library also provides PHP programmers with a high-level API for PDF documents. These APIs include adding, deleting, and modifying PDF file elements, such as text, pictures, tables, graphics, etc.

Step 2: Set the PDF file title

After creating the PDF file and preparing all the configuration information, you can use the following code to set the PDF file title to Required name:

$pdf->setTitle('PDF Title');

In this code snippet, "PDF Title" is the title of the PDF file created. After using this code, the title of the PDF file will be set to "PDF Title".

If you need to set the author, subject and creation date of the PDF file, you can use the following code:

$pdf->setAuthor('Author Name');
$pdf->setSubject('PDF Subject');
$pdf->setCreationDate();

In the code snippet, "Author Name" is the author name of the PDF file, and " PDF Subject" is the subject of the PDF file. The setCreationDate() method sets the creation date of the PDF file to the current date and time.

After setting all elements, use the following code snippet to save the generated PDF file:

$pdf->Output('Filename.pdf', 'D');

This code snippet creates and outputs a PDF file. Among them, "Filename.pdf" is the name of the PDF file, and "D" means downloading the PDF file directly.

Summary

This article explains how to set the file title when creating a PDF file using the PHP library. First, you need to prepare all the configuration information of the PDF file, and then you can use the title setting method provided by the PDF library to set the title, author, subject, and creation date of the PDF file. Finally, use the PDF library's output method to output or save the generated PDF file to your local computer.

For those developers who are already using PHP code to automatically generate PDF files, setting the PDF file title is not difficult. However, if this key element is missing, the efficiency of PDF file operations will be greatly reduced. Therefore, setting the PDF title is a very important point when designing and writing PDF file operating systems.

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