用PHP进行PDF编辑? [英] PDF Editing in PHP?

问题描述

有人知道用PHP编辑PDF的好方法吗?最好是开源/零许可证费用方法. :)

Does anyone know of a good method for editing PDFs in PHP? Preferably open-source/zero-license cost methods. :)

我正在考虑打开PDF文件，替换PDF中的文本，然后写出PDF的修改版本吗?

I am thinking along the lines of opening a PDF file, replacing text in the PDF and then writing out the modified version of the PDF?

我过去曾经使用FPDF以编程方式创建PDF文件，但有时发现它有点笨拙.

I have programmatically created PDF files in the past using FPDF, but found it a little unwieldy at times.

推荐答案

如果采用填空"方法，则可以将文本精确地放置在页面上的任何位置.因此，将丢失的文本添加到文档中相对容易(即使不是很乏味).例如，使用Zend Framework:

If you are taking a 'fill in the blank' approach, you can precisely position text anywhere you want on the page. So it's relatively easy (if not a bit tedious) to add the missing text to the document. For example with Zend Framework:

<?php
require_once 'Zend/Pdf.php';

$pdf = Zend_Pdf::load('blank.pdf');
$page = $pdf->pages[0];
$font = Zend_Pdf_Font::fontWithName(Zend_Pdf_Font::FONT_HELVETICA);
$page->setFont($font, 12);
$page->drawText('Hello world!', 72, 720);
$pdf->save('zend.pdf');

如果您要替换内联内容，例如"[占位符字符串]"，它将变得更加复杂.尽管从技术上讲是可行的，但您很可能会弄乱页面的布局.

If you're trying to replace inline content, such as a "[placeholder string]," it gets much more complicated. While it's technically possible to do, you're likely to mess up the layout of the page.

PDF文档由一组基本绘图操作组成:此处的行，此处的图像，此处的文本块等.它不包含有关这些基元的布局意图的任何信息.

A PDF document is comprised of a set of primitive drawing operations: line here, image here, text chunk there, etc. It does not contain any information about the layout intent of those primitives.

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