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182 lines
8.3 KiB
182 lines
8.3 KiB
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
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<html> |
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> |
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<title>Adding new fonts and encodings</title> |
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<link type="text/css" rel="stylesheet" href="../fpdf.css"> |
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</head> |
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<body> |
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<h1>Adding new fonts and encodings</h1> |
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This tutorial explains how to use TrueType, OpenType and Type1 fonts so that you are not limited to the |
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standard fonts anymore. The other benefit is that you can choose the text encoding, which allows you to |
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use other languages than the Western ones (the standard fonts support only cp1252 aka windows-1252). |
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<br> |
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<br> |
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For OpenType, only the format based on TrueType is supported (not the one based on Type1).<br> |
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For Type1, you will need the corresponding AFM file (it is usually provided with the font). |
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Adding a new font requires two steps: |
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<ul> |
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<li>Generation of the font definition file</li> |
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<li>Declaration of the font in the script</li> |
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</ul> |
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<h2>Generation of the font definition file</h2> |
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The first step consists in generating a PHP file containing all the information needed by FPDF; |
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in addition, the font file is compressed. To do this, a helper script is provided in the makefont |
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directory of the package: makefont.php. It contains the following function: |
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<br> |
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<br> |
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<code>MakeFont(<b>string</b> fontfile [, <b>string</b> enc [, <b>boolean</b> embed [, <b>boolean</b> subset]]])</code> |
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<dl class="param" style="margin-bottom:2em"> |
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<dt><code>fontfile</code></dt> |
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<dd> |
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<p>Path to the .ttf, .otf or .pfb file.</p> |
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</dd> |
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<dt><code>enc</code></dt> |
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<dd> |
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<p>Name of the encoding to use. Default value: <code>cp1252</code>.</p> |
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</dd> |
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<dt><code>embed</code></dt> |
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<dd> |
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<p>Whether to embed the font or not. Default value: <code>true</code>.</p> |
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</dd> |
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<dt><code>subset</code></dt> |
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<dd> |
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<p>Whether to subset the font or not. Default value: <code>true</code>.</p> |
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</dd> |
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</dl> |
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The first parameter is the name of the font file. The extension must be either .ttf, .otf or .pfb and |
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determines the font type. If your Type1 font is in ASCII format (.pfa), you can convert it to binary |
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(.pfb) with the help of <a href="http://www.lcdf.org/~eddietwo/type/#t1utils" target="_blank">t1utils</a>. |
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<br> |
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For Type1 fonts, the corresponding .afm file must be present in the same directory. |
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<br> |
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<br> |
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The encoding defines the association between a code (from 0 to 255) and a character. The first 128 are |
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always the same and correspond to ASCII; the following are variable. Encodings are stored in .map |
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files. The available ones are: |
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<ul> |
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<li>cp1250 (Central Europe)</li> |
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<li>cp1251 (Cyrillic)</li> |
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<li>cp1252 (Western Europe)</li> |
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<li>cp1253 (Greek)</li> |
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<li>cp1254 (Turkish)</li> |
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<li>cp1255 (Hebrew)</li> |
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<li>cp1257 (Baltic)</li> |
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<li>cp1258 (Vietnamese)</li> |
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<li>cp874 (Thai)</li> |
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<li>ISO-8859-1 (Western Europe)</li> |
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<li>ISO-8859-2 (Central Europe)</li> |
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<li>ISO-8859-4 (Baltic)</li> |
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<li>ISO-8859-5 (Cyrillic)</li> |
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<li>ISO-8859-7 (Greek)</li> |
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<li>ISO-8859-9 (Turkish)</li> |
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<li>ISO-8859-11 (Thai)</li> |
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<li>ISO-8859-15 (Western Europe)</li> |
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<li>ISO-8859-16 (Central Europe)</li> |
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<li>KOI8-R (Russian)</li> |
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<li>KOI8-U (Ukrainian)</li> |
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</ul> |
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Of course, the font must contain the characters corresponding to the selected encoding. |
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<br> |
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<br> |
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The third parameter indicates whether the font should be embedded in the PDF or not. When a font is |
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not embedded, it is searched in the system. The advantage is that the PDF file is smaller; on the |
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other hand, if it is not available, then a substitution font is used. So you should ensure that the |
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needed font is installed on the client systems. Embedding is the recommended option to guarantee a |
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correct rendering. |
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<br> |
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The last parameter indicates whether subsetting should be used, that is to say, whether only |
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the characters from the selected encoding should be kept in the embedded font. As a result, |
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the size of the PDF file can be greatly reduced, especially if the original font was big. |
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<br> |
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<br> |
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After you have called the function (create a new file for this and include makefont.php), a .php file |
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is created, with the same name as the font file. You may rename it if you wish. If the case of embedding, |
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the font file is compressed and gives a second file with .z as extension (except if the compression |
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function is not available, it requires Zlib). You may rename it too, but in this case you have to change |
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the variable <code>$file</code> in the .php file accordingly. |
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<br> |
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<br> |
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Example: |
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<div class="source"> |
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<pre><code><?php |
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<span class="kw">require(</span><span class="str">'makefont/makefont.php'</span><span class="kw">); |
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</span>MakeFont<span class="kw">(</span><span class="str">'C:\\Windows\\Fonts\\comic.ttf'</span><span class="kw">,</span><span class="str">'cp1252'</span><span class="kw">); |
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</span>?></code></pre> |
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</div> |
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which gives the files comic.php and comic.z. |
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<br> |
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<br> |
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Then copy the generated files to the font directory. If the font file could not be compressed, copy |
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it directly instead of the .z version. |
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<br> |
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<br> |
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Another way to call MakeFont() is through the command line: |
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<br> |
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<kbd>php makefont\makefont.php C:\Windows\Fonts\comic.ttf cp1252</kbd> |
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<br> |
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<br> |
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Finally, for TrueType and OpenType fonts, you can also generate the files |
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<a href="http://www.fpdf.org/makefont/">online</a> instead of doing it manually. |
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<h2>Declaration of the font in the script</h2> |
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The second step is simple. You just need to call the <a href='../doc/addfont.htm'>AddFont()</a> method: |
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<div class="source"> |
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<pre><code>$pdf<span class="kw">-></span>AddFont<span class="kw">(</span><span class="str">'Comic'</span><span class="kw">,</span><span class="str">''</span><span class="kw">,</span><span class="str">'comic.php'</span><span class="kw">); |
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</span></code></pre> |
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</div> |
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And the font is now available (in regular and underlined styles), usable like the others. If we |
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had worked with Comic Sans MS Bold (comicbd.ttf), we would have written: |
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<div class="source"> |
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<pre><code>$pdf<span class="kw">-></span>AddFont<span class="kw">(</span><span class="str">'Comic'</span><span class="kw">,</span><span class="str">'B'</span><span class="kw">,</span><span class="str">'comicbd.php'</span><span class="kw">); |
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</span></code></pre> |
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</div> |
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<h2>Example</h2> |
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Now let's see a complete example. We will use the <a href="https://fonts.google.com/specimen/Ceviche+One" target="_blank">Ceviche One</a> font. |
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The first step is the generation of the font files: |
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<div class="source"> |
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<pre><code><?php |
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<span class="kw">require(</span><span class="str">'makefont/makefont.php'</span><span class="kw">); |
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</span>MakeFont<span class="kw">(</span><span class="str">'CevicheOne-Regular.ttf'</span><span class="kw">,</span><span class="str">'cp1252'</span><span class="kw">); |
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</span>?></code></pre> |
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</div> |
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The script produces the following output: |
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<br> |
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Font file compressed: CevicheOne-Regular.z<br> |
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Font definition file generated: CevicheOne-Regular.php<br> |
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<br> |
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Alternatively we could have used the command line: |
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<kbd>php makefont\makefont.php CevicheOne-Regular.ttf cp1252</kbd> |
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<br> |
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or used the online generator. |
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<br> |
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<br> |
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We can now copy the two generated files to the font directory and write the script: |
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<div class="source"> |
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<pre><code><?php |
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<span class="kw">require(</span><span class="str">'fpdf.php'</span><span class="kw">); |
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</span>$pdf <span class="kw">= new </span>FPDF<span class="kw">(); |
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</span>$pdf<span class="kw">-></span>AddFont<span class="kw">(</span><span class="str">'CevicheOne'</span><span class="kw">,</span><span class="str">''</span><span class="kw">,</span><span class="str">'CevicheOne-Regular.php'</span><span class="kw">); |
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</span>$pdf<span class="kw">-></span>AddPage<span class="kw">(); |
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</span>$pdf<span class="kw">-></span>SetFont<span class="kw">(</span><span class="str">'CevicheOne'</span><span class="kw">,</span><span class="str">''</span><span class="kw">,</span>35<span class="kw">); |
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</span>$pdf<span class="kw">-></span>Write<span class="kw">(</span>10<span class="kw">,</span><span class="str">'Enjoy new fonts with FPDF!'</span><span class="kw">); |
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</span>$pdf<span class="kw">-></span>Output<span class="kw">(); |
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</span>?></code></pre> |
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</div> |
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<p class='demo'><a href='tuto7.php' target='_blank' class='demo'>[Demo]</a></p> |
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</body> |
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</html>
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