TCPDF HTML with Special Characters displays empty PDF file

问题

I am using TCPDF Library Version: 5.9.011. I am trying to execute HTML layout as PDF. For which I tried with example provide with the site

$html = '<h1>HTML Example</h1>
<h2>List</h2>
Some special characters: &lt; € &euro; &#8364; &amp; è &egrave; &copy; &gt; \\slash \\\\double-slash \\\\\\triple-slash
';
// output the HTML content
$pdf->writeHTML($html, true, false, true, false, '');

//Close and output PDF document
$pdf->Output('example_006.pdf', 'I');

Apparently found that generated PDF only default header and footer with middle content blank.

However if I remove special characters like:

$html = '<h1>HTML Example</h1>
<h2>List</h2>
Some special characters:
';

PDF gets its middle content as specified in $html

回答1:

before line $pdf->writeHTML

$html = utf8_decode($html);

maybe

$html = utf8_encode($html);

回答2:

As already mentionned by other persons you need to change the constructor, Set UTF-8 flase and change new charshet like below:

$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, false, 'ISO-8859-1', false);

Only changing this won't always prevent getting a blank page. To prevent getting a blank page: change your font type to 'helvetica' or other.

$pdf->SetFont('helvetica', '', 11, '', true);

It works!

回答3:

you need to change constructor, Set UTF-8 flase and change new charshet like below:

$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, false, 'ISO-8859-1', false);

In above example, I set encoding ISO-8859-1 instead of UTF-8 and I change true to false.

Krish

回答4:

I also had a similar issue. I had a to generate a pdf from a HTML file with multiple lists and a tick symbol as a bullet point.

I tried all these solutions but none worked, I had to used a picture, but it was slowing down the process. Finally I came accross this: http://www.tcpdf.org/examples/example_055.pdf, at the very end there is a "zapfdingbats" font with a lot of symbols.

So I replaced all my tick images by : <span>3<span> and set the font of this element to font-family="zapfdingbats", and it worked.It is a bit hacky, but it works well.

回答5:

I am writing HTML content to pdf and have to print the check mark symbol. Here is what I did and it worked.

$pdf->SetFont('zapfdingbats');
$pdf->SetFont('helvetica'); // for regular content

and then in my HTML I added the checkmark with below code

<span style="font-family: zapfdingbats;">4</span>

Hope this

回答6:

You are using latest version of TCPDF.Follow steps mentioned here. It should work

回答7:

I had a similar problem and I fixed all in this way:

$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, false, 'UTF-8', false, true);

and at the end:

$pdf->writeHTMLCell(0, 0, '', '', utf8_decode($html), 0, 1, 0, true, '', true);

回答8:

You can put the text in a variable and use a php function to convert

example for UTF-8 caracter

    $html = '<h1>HTML Example</h1>
<h2>List</h2>

Some special characters: € è ù à \\ \\\
';
// output the HTML content
$pdf->writeHTML(utf8_encode($html), true, false, true, false, '');

//Close and output PDF document
$pdf->Output('example_006.pdf', 'I');

for other function use php reference guide

回答9:

For me, this fixed the problem :

$this->pdf->AddPage('P', 'A4');
$this->pdf->deletePage($this->pdf->getNumPages());

I hope it will help someone

回答10:

I had to add single space after string ending with UTF8 character (not after whole <p> tag):

$name = '<p style="color:red;font-weight:bold;font-size:34pt;text-align:center;">Jaźń Jeżę </p>';

utf_decode() and utf_encode() didn't work.

来源：https://stackoverflow.com/questions/4141865/tcpdf-html-with-special-characters-displays-empty-pdf-file

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php

kohana-3

tcpdf