如何用php填写PDF表单?

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我有很多PDF表单,我需要用我已经拥有的数据在php中填写它们。

我想要的只是当我从我的网站下载这些表格时,它会用我已经拥有的信息预先填充pdf表格中的所有字段。

提问于
用户回答回答于

首先,创建一个FDF。

pdftk form.pdf generate_fdf output data.fdf

现在可以使用它作为模板。

%FDF-1.2
%<E2><E3><CF><D3>
1 0 obj 
<<
/FDF 
<<
/Fields [
<<
/V ()
/T (Date)
>> 
<<
/V /
/T (CheckBox2)
>> 
<<
/V /
/T (CheckBox3)
>> 
<<
/V /
/T (CheckBox4)
>> 
<<
/V /
/T (CheckBox5)
>> 
<<
/V ()
/T (Your_Last_Name)
>> 
<<
/V ()
/T (Your_First_Name)
>> 
<<
/V /
/T (CheckBox1)
>>]
>>
>>
endobj 
trailer

<<
/Root 1 0 R
>>
%%EOF

字段是从/V ()。在这些字段中输入所需的值。例如:

%FDF-1.2
%<E2><E3><CF><D3>
1 0 obj 
<<
/FDF 
<<
/Fields [
<<
/V (February 4, 2012)
/T (Date)
...

最后,将FDF与PDF合并。执行命令:

pdftk form.pdf fill_form data.fdf output form_with_data.pdf

如果不需要保留FDF和生成的PDF文件,可以通过stdin和stdout传输数据,而不是使用临时文件。

用户回答回答于
$pdf = Zend_Pdf::load('input-file-containing-form.pdf');
$pdf->setTextField('name', 'Someone');
$pdf->setTextField('address', '1 Main Street');
$pdf->setTextField('city', 'Cyberspace');
$pdf->save('outputfile.pdf');
--- Pdf.php.orig    2009-11-15 17:52:57.000000000 +0100
+++ Pdf.php 2010-01-07 04:05:23.000000000 +0100
@@ -202,6 +202,13 @@
      * @var array
      */
     protected static $_inheritableAttributes = array('Resources', 'MediaBox', 'CropBox', 'Rotate');
+    
+    /**
+     * List of form fields
+     *
+     * @var array - Associative array, key: name of form field, value: Zend_Pdf_Element
+     */
+    protected $_formFields = array();

     /**
      * Request used memory manager
@@ -315,6 +322,7 @@

             $this->_loadNamedDestinations($this->_trailer->Root, $this->_parser->getPDFVersion());
             $this->_loadOutlines($this->_trailer->Root);
+            $this->_loadFormfields($this->_trailer->Root);

             if ($this->_trailer->Info !== null) {
                 $this->properties = $this->_trailer->Info->toPhp();
@@ -557,6 +565,61 @@
             $this->_originalOpenOutlinesCount = $root->Outlines->Count->value;
         }
     }
+    
+    /**
+     * Load form fields
+     * Populates the _formFields array, for later lookup of fields by name
+     *
+     * @param Zend_Pdf_Element_Reference $root Document catalog entry
+     */
+    protected function _loadFormFields(Zend_Pdf_Element_Reference $root)
+    {
+      if ($root->AcroForm === null || $root->AcroForm->Fields === null) {
+        return;
+      }
+      
+      foreach ($root->AcroForm->Fields->items as $field)
+      {
+          if ( $field->FT->value == 'Tx' && $field->T !== null ) /* We only support fields that are textfields and have a name */
+          {
+              $this->_formFields[$field->T->value] = $field;
+          }
+      }
+      
+      if ( !$root->AcroForm->NeedAppearances || !$root->AcroForm->NeedAppearances->value )
+      {
+        /* Ask the .pdf viewer to generate its own appearance data, so we do not have to */
+        $root->AcroForm->add(new Zend_Pdf_Element_Name('NeedAppearances'), new Zend_Pdf_Element_Boolean(true) );
+        $root->AcroForm->touch();
+      }
+    }
+    
+    /**
+     * Retrieves a list with the names of the AcroForm textfields in the PDF
+     *
+     * @return array of strings
+     */
+    public function getTextFieldNames()
+    {
+      return array_keys($this->_formFields);
+    }
+    
+    /**
+     * Sets the value of an AcroForm text field
+     *
+     * @param string $name Name of textfield
+     * @param string $value Value
+     * @throws Zend_Pdf_Exception if the textfield does not exist in the pdf
+     */
+    public function setTextField($name, $value)
+    {
+      if ( !isset($this->_formFields[$name]))
+        throw new Zend_Pdf_Exception("Field '$name' does not exist or is not a textfield");
+      
+      $field = $this->_formFields[$name];
+      $field->add(new Zend_Pdf_Element_Name('V'), new Zend_Pdf_Element_String($value) );
+      $field->touch();      
+    }

     /**
      * Orginize pages to tha pages tree structure.

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