Вот здест
Unicode in PDF, пишут
See Appendix D (page 995) of the PDF specification. There is a limited number of fonts and
character sets pre-defined in a PDF consumer application. To display other characters you
need to embed a font that contains them. It is also preferable to embed only a subset of
the font, including only required characters, in order to reduce file size.
I am also working on displaying Unicode characters in PDF and it is a major hassle.
adobe.com/devnet/pdf/pdf_reference.html
.
Нету в стандартных шрифтах кириллицы.
В jsPDF нет средств внедрения шрифтов.
Например, mPDF (PHP), так и поступает, внедряет подмножество шрифта.
Т. е. "просмоторщик" pdf должен сам содержать/предоставлять юникодные шрифты.
Предположим наш "просмоторщик" такие шрифты даёт.
Добавьте в файл jspdf.js перед строкой 1912 (return API; функция jsPDF) код
var padz =
[
"",
"0",
"00",
"000",
"0000"
];
var pdfEscape16 = function(text, flags)
{
var ar = ["FEFF"];
for(var i = 0, l = text.length, t; i < l; ++i)
{
t = text.charCodeAt(i).toString(16).toUpperCase();
ar.push(padz[4 - t.length], t);
}
return ar.join("");
};
API.text16 = function (text, x, y, flags)
{
/**
* Inserts something like this into PDF
BT
/F1 16 Tf % Font name + size
16 TL % How many units down for next line in multiline text
0 g % color
28.35 813.54 Td % position
(line one) Tj
T* (line two) Tj
T* (line three) Tj
ET
*/
var undef, _first, _second, _third, newtext, str, i;
// Pre-August-2012 the order of arguments was function(x, y, text, flags)
// in effort to make all calls have similar signature like
// function(data, coordinates... , miscellaneous)
// this method had its args flipped.
// code below allows backward compatibility with old arg order.
if (typeof text === 'number') {
_first = y;
_second = text;
_third = x;
text = _first;
x = _second;
y = _third;
}
// If there are any newlines in text, we assume
// the user wanted to print multiple lines, so break the
// text up into an array. If the text is already an array,
// we assume the user knows what they are doing.
if (typeof text === 'string' && text.match(/[\n\r]/)) {
text = text.split(/\r\n|\r|\n/g);
}
if (typeof flags === 'undefined') {
flags = {'noBOM': true, 'autoencode': true};
} else {
if (flags.noBOM === undef) {
flags.noBOM = true;
}
if (flags.autoencode === undef) {
flags.autoencode = true;
}
}
if (typeof text === 'string') {
str = pdfEscape16(text, flags);
} else if (text instanceof Array) { /* Array */
// we don't want to destroy original text array, so cloning it
newtext = text.concat();
// we do array.join('text that must not be PDFescaped")
// thus, pdfEscape each component separately
for (i = newtext.length - 1; i !== -1; i--) {
newtext[i] = pdfEscape16(newtext[i], flags);
}
str = newtext.join("> Tj\nT* <");
} else {
throw new Error('Type of text must be string or Array. "' + text + '" is not recognized.');
}
// Using "'" ("go next line and render text" mark) would save space but would complicate our rendering code, templates
// BT .. ET does NOT have default settings for Tf. You must state that explicitely every time for BT .. ET
// if you want text transformation matrix (+ multiline) to work reliably (which reads sizes of things from font declarations)
// Thus, there is NO useful, *reliable* concept of "default" font for a page.
// The fact that "default" (reuse font used before) font worked before in basic cases is an accident
// - readers dealing smartly with brokenness of jsPDF's markup.
out(
'BT\n/' +
activeFontKey + ' ' + activeFontSize + ' Tf\n' + // font face, style, size
(activeFontSize * lineHeightProportion) + ' TL\n' + // line spacing
textColor +
'\n' + f2(x * k) + ' ' + f2((pageHeight - y) * k) + ' Td\n<' +
str +
'> Tj\nET'
);
return this;
};
Добавлять текст через вызов функции text16.
Средний
Простой
Простой
Простой
