PDFlib

高度なPDFアプリケーションの開発を支援する定番プログラムライブラリー Supported by インフォテック株式会社

PDFlib サンプル集(クックブック)

本サンプルプログラムは、PDF 文書生成ライブラリーの実装である PDFlib の基本的な機能を実際のプログラムで紹介したものです。

本サイトでダウンロードした PDFlib は、一部機能の制限を除き、評価版として無償でお使いいただけます。

フォント情報

PDFlib で、フォント名、フォントスタイルやエンコーディングといったフォントのプロパティを取得するサンプルプログラムです。font_info 関数にさまざまなキーやオプションを使って、必要なフォント情報を取得します。


/* $Id: font_info.java,v 1.11 2013/01/15 10:11:58 stm Exp $
 * Font info:
 * Get various properties of a font such as font name, font style, or encoding
 *
 * Use info_font() with various keys and options to retrieve the required font
 * information
 *
 * Required software: PDFlib/PDFlib+PDI/PPS 9
 * Required data: font file
 */
import com.pdflib.pdflib;
import com.pdflib.PDFlibException;

public class font_info
{
    public static void main (String argv[])
    {
    /* This is where the data files are. Adjust as necessary. */
    String searchpath = "../input";
    String outfile = "font_info.pdf";
    String title = "Font Info";

    pdflib p = null;
    int font;
    double info;
    String fontname, fontstyle;
    int x=20, xindent=150, y=820, yoffset=20;

    try {
        p = new pdflib();

        /* This means we must check return values of load_font() etc. */
        p.set_option("errorpolicy=return");

        p.set_option("searchpath={" + searchpath + "}");

        if (p.begin_document(outfile, "") == -1)
            throw new Exception("Error: " + p.get_errmsg());

        p.set_info("Creator", "PDFlib Cookbook");
        p.set_info("Title", title + " $Revision: 1.11 $");

        /* Start page */
        p.begin_page_ext(0, 0, "width=a4.width height=a4.height");

        /* Load a font */
        font = p.load_font("LuciduxSans-Oblique", "unicode", "embedding");
        if (font == -1)
            throw new Exception("Error: " + p.get_errmsg());

        p.setfont(font, 12);

        /* Get the font name: use "api" to get the font name used by PDFlib.
         * (use "acrobat" for the Acrobat font name or use "full" for
         * retrieving the full font name)
         */
        p.fit_textline("fontname (api):", x, y-=yoffset, "");

        info = p.info_font(font, "fontname", "api");
        if (info > -1) {
            fontname = p.get_string((int) info, "");
            p.fit_textline(fontname, xindent, y, "");
        }

        /* Get the path name for the font outline file. This will be successful
         * since in our case the font file name is identical to the font name
         * "LuciduxSans-Oblique". In other cases the font file name can only be
         * retrieved if it has been configured using set_parameter() and the
         * "FontOutline" resource category.
         */
        p.fit_textline("fontfile:", x, y-=yoffset, "");

        info = p.info_font(font, "fontfile", "");
        if (info > -1) {
            fontname = p.get_string((int) info, "");
            p.fit_textline(fontname, xindent, y, "");
        }

        /* With PostScript Type 1 fonts, get the path name for the font metrics
         * file (AFM or PFM). This will be successful since in our case the
         * font metrics file name is identical to the font name
         * "LuciduxSans-Oblique". In other cases the font file name can only be
         * retrieved if it has been configured using set_parameter() and the
         * "FontAFM" or "FontPFM" resource category.
         */
        p.fit_textline("metricsfile:", x, y-=yoffset, "");

        info = p.info_font(font, "metricsfile", "");
        if (info > -1) {
            fontname = p.get_string((int) info, "");
            p.fit_textline(fontname, xindent, y, "");
        }

        /* Get the encoding of the font: use "api" to get the encoding name
         * as specified in PDFlib (use "actual" for the name of the encoding
         * actually used for the font)
         */
        p.fit_textline("encoding (api):", x, y-=yoffset, "");

        info = p.info_font(font, "encoding", "api");
        if (info > -1) {
            fontname = p.get_string((int) info, "");
            p.fit_textline(fontname, xindent, y, "");
        }

        /* Get information about if the font is embedded as a CID font */
        p.fit_textline("cidfont:", x, y-=yoffset, "");

        info = p.info_font(font, "cidfont", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get information about if the font is a host font */
        p.fit_textline("hostfont:", x, y-=yoffset, "");

        info = p.info_font(font, "hostfont", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get the supplement number of the character collection for fonts with
         * a standard CJK CMap
         */
        p.fit_textline("supplement:", x, y-=yoffset, "");

        info = p.info_font(font, "supplement", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get information about if the font is a standard font */
        p.fit_textline("standardfont:", x, y-=yoffset, "");

        info = p.info_font(font, "standardfont", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get information about if the font is a symbol font */
        p.fit_textline("symbolfont:", x, y-=yoffset, "");

        info = p.info_font(font, "symbolfont", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get information about if the font is embedded as a CID font */
        p.fit_textline("cidfont:", x, y-=yoffset, "");

        info = p.info_font(font, "cidfont", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get information about if the font is loaded with an encoding which
         * allows unicode text
         */
        p.fit_textline("unicodefont:", x, y-=yoffset, "");

        info = p.info_font(font, "unicodefont", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get information about if a font subset will be created */
        p.fit_textline("willsubset:", x, y-=yoffset, "");

        info = p.info_font(font, "willsubset", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get information about if the font will be embedded */
        p.fit_textline("willembed:", x, y-=yoffset, "");

        info = p.info_font(font, "willembed", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get information about if the font is for vertical writing mode */
        p.fit_textline("vertical:", x, y-=yoffset, "");

        info = p.info_font(font, "vertical", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get the style of the font */
        p.fit_textline("fontstyle:", x, y-=yoffset, "");

        info = p.info_font(font, "fontstyle", "");
        if (info > -1) {
            fontstyle = p.get_string((int) info, "");
            p.fit_textline(fontstyle, xindent, y, "");
        }

        /* Get information about if the font style will be faked */
        p.fit_textline("fontstyle (faked):", x, y-=yoffset, "");

        info = p.info_font(font, "fontstyle", "faked");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get the italic angle of the font (/ItalicAngle in the PDF font
         * descriptor)
         */
        p.fit_textline("italicangle:", x, y-=yoffset, "");

        info = p.info_font(font, "italicangle", "");
        p.fit_textline(Double.toString(info), xindent, y, "");

        /* Get the weight of the font (between 100 and 900)
         * 400=normal, 700=bold
         */
        p.fit_textline("weight:", x, y-=yoffset, "");

        info = p.info_font(font, "weight", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get the number of CIDs if the font uses a standard CMap */
        p.fit_textline("numcids:", x, y-=yoffset, "");

        info = p.info_font(font, "numcids", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get the number of glyphs in the font */
        p.fit_textline("numglyphs:", x, y-=yoffset, "");

        info = p.info_font(font, "numglyphs", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Get the highest code value for the encoding of the font */
        p.fit_textline("maxcode:", x, y-=yoffset, "");

        info = p.info_font(font, "maxcode", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Unicode value (for Unicode-compatible fonts) or code value
         * (for Symbol fonts) of the replacement character of the font
         */
        p.fit_textline("replacementchar:", x, y-=yoffset, "");

        info = p.info_font(font, "replacementchar", "");
        if (info > -1) {
            p.fit_textline("U+00" +
                Integer.toHexString((int) info).toUpperCase(), xindent, y, "");
        }

        /* Get the number of kerning pairs in the font */
        p.fit_textline("kerningpairs:", x, y-=yoffset, "");

        info = p.info_font(font, "kerningpairs", "");
        p.fit_textline(Integer.toString((int) info), xindent, y, "");

        /* Finish page */
        p.end_page_ext("");

        p.end_document("");

        } catch (PDFlibException e) {
            System.err.print("PDFlib exception occurred:\n");
            System.err.print("[" + e.get_errnum() + "] " + e.get_apiname() +
                ": " + e.get_errmsg() + "\n");
        } catch (Exception e) {
            System.err.println(e.getMessage());
        } finally {
            if (p != null) {
                p.delete();
            }
        }
    }
}
(Apr 3, 2007 - Feb 20, 2014)