Ayush

examples/src/main/java/org/apache/pdfbox/examples/LocalPdfServer.java

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+package org.apache.pdfbox.examples;
+
+import com.sun.net.httpserver.HttpServer;
+import com.sun.net.httpserver.HttpHandler;
+import com.sun.net.httpserver.HttpExchange;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.font.PDType0Font;
+
+import java.io.*;
+import java.net.InetSocketAddress;
+import java.nio.file.Files;
+import java.util.*;
+
+public class LocalPdfServer {
+    public static void main(String[] args) throws IOException {
+        int port = 8080;
+        HttpServer server = HttpServer.create(new InetSocketAddress(port), 0);
+        System.out.println("Server started at: http://localhost:" + port);
+
+        server.createContext("/generate-pdf", new PdfGeneratorHandler());
+        server.setExecutor(null);
+        server.start();
+    }
+
+    static class PdfGeneratorHandler implements HttpHandler {
+        @Override
+        public void handle(HttpExchange exchange) throws IOException {
+            if ("OPTIONS".equals(exchange.getRequestMethod())) {  // Handle preflight request
+                exchange.getResponseHeaders().set("Access-Control-Allow-Origin", "*");
+                exchange.getResponseHeaders().set("Access-Control-Allow-Methods", "POST, OPTIONS");
+                exchange.getResponseHeaders().set("Access-Control-Allow-Headers", "Content-Type");
+                exchange.sendResponseHeaders(204, -1); // No content for preflight
+                return;
+            }
+
+            if (!"POST".equals(exchange.getRequestMethod())) {
+                exchange.sendResponseHeaders(405, 0);
+                exchange.close();
+                return;
+            }
+
+            // Enable CORS for normal requests
+            exchange.getResponseHeaders().set("Access-Control-Allow-Origin", "*");
+            exchange.getResponseHeaders().set("Content-Type", "application/pdf");
+
+            // Read request body
+            InputStream inputStream = exchange.getRequestBody();
+            String requestBody = new String(inputStream.readAllBytes());
+
+            // Extract text and font from request
+            String text = requestBody.replaceAll(".*\"text\":\"(.*?)\".*", "$1");
+            String fontKey = requestBody.replaceAll(".*\"font\":\"(.*?)\".*", "$1");
+
+            if (text.isEmpty()) {
+                exchange.sendResponseHeaders(400, 0);
+                exchange.getResponseBody().close();
+                return;
+            }
+
+            // Get font path
+            Map<String, String> fonts = getFontMap();
+            String fontPath = fonts.getOrDefault(fontKey, fonts.get("kalimati"));  // Default to Kalimati
+
+            File pdfFile = new File("generated.pdf");
+            generatePDF(text, pdfFile, fontPath);
+
+            byte[] pdfData = Files.readAllBytes(pdfFile.toPath());
+            exchange.sendResponseHeaders(200, pdfData.length);
+            exchange.getResponseBody().write(pdfData);
+            exchange.getResponseBody().close();
+        }
+    }
+
+    private static void generatePDF(String text, File pdfFile, String fontPath) throws IOException {
+        PDDocument document = new PDDocument();
+        PDPage page = new PDPage();
+        document.addPage(page);
+
+        PDPageContentStream contentStream = new PDPageContentStream(document, page);
+        PDType0Font pdfFont = PDType0Font.load(document, new File(fontPath));
+
+        float startX = 50, startY = 700, fontSize = 14, leading = 1.5f * fontSize;
+
+        contentStream.beginText();
+        contentStream.setFont(pdfFont, fontSize);
+        contentStream.newLineAtOffset(startX, startY);
+
+        List<String> wrappedText = wrapText(text, pdfFont, fontSize, page.getMediaBox().getWidth() - 2 * startX);
+        for (String line : wrappedText) {
+            contentStream.showText(line);
+            contentStream.newLineAtOffset(0, -leading);
+        }
+
+        contentStream.endText();
+        contentStream.close();
+        document.save(pdfFile);
+        document.close();
+    }
+
+    private static Map<String, String> getFontMap() {
+        Map<String, String> fontMap = new LinkedHashMap<>();
+        fontMap.put("noto", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/NotoSansDevanagariRegular.ttf");
+        fontMap.put("noto_the_group", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/NotoTheGroup.ttf");
+        fontMap.put("kokila", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/Kokila.ttf");
+        fontMap.put("nirmala", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/Nirmala.ttf");
+        fontMap.put("nirmala_the_group", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/NirmalaTheGroup.ttf");
+        fontMap.put("mangal", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/MangalRegular.ttf");
+        fontMap.put("lohit", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/LohitDevanagari.ttf");
+        fontMap.put("tiro", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/TiroDevanagariHindiRegular.ttf");
+        fontMap.put("kalimati", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/Kalimati.ttf");
+        fontMap.put("kanjirowa", "examples/src/main/resources/org/apache/pdfbox/resources/ttf/Kanjirowa.ttf");
+        return fontMap;
+    }
+
+    private static List<String> wrapText(String text, PDType0Font font, float fontSize, float maxWidth) throws IOException {
+        List<String> lines = new ArrayList<>();
+        String[] words = text.split(" ");
+        StringBuilder currentLine = new StringBuilder();
+
+        for (String word : words) {
+            String testLine = currentLine.length() == 0 ? word : currentLine + " " + word;
+            float textWidth = font.getStringWidth(testLine) / 1000 * fontSize;
+
+            if (textWidth > maxWidth) {
+                lines.add(currentLine.toString());
+                currentLine = new StringBuilder(word);
+            } else {
+                currentLine.append(currentLine.length() == 0 ? word : " " + word);
+            }
+        }
+
+        if (currentLine.length() > 0) {
+            lines.add(currentLine.toString());
+        }
+
+        return lines;
+    }
+}

examples/src/main/java/org/apache/pdfbox/examples/pdmodel/NepaliDevanagariPdfGeneration.java

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+package org.apache.pdfbox.examples.pdmodel;
+
+
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.font.PDType0Font;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.*;
+
+/*
+ * @author Amar Dura
+ */
+public class NepaliDevanagariPdfGeneration {
+
+    public static void main(String[] args) {
+        PDDocument document;
+        PDPageContentStream contentStream;
+        String text = getStringText();
+        // Load the font file
+        Map<String,String> fonts = getFontMap();
+
+        // Define initial position
+        float startX = 50;
+        float startY = 700;
+        float fontSize = 12;
+        float leading = 1.5f * fontSize;
+        try{
+            document = new PDDocument();
+            PDPage page = new PDPage();
+            document.addPage(page);
+            contentStream = new PDPageContentStream(document, page);
+            List<String> fontNames = new ArrayList<>(fonts.keySet());
+            for (int i = 0; i < fonts.size(); i++) {
+                String fontName = fontNames.get(i);
+                String fontPath = fonts.get(fontName);
+
+                File fontFile = new File(fontPath);
+                PDType0Font pdfFont = PDType0Font.load(document, fontFile);
+
+                // Begin the contentStream
+                contentStream.beginText();
+                contentStream.newLineAtOffset(startX, startY);
+                contentStream.setFont(pdfFont, fontSize);
+
+                // Show font name
+                contentStream.showText(fontName);
+                // Move down for spacing (e.g., 2x the leading)
+                contentStream.newLineAtOffset(0, -1 * leading);
+
+                // Split and show the text
+                List<String> wrappedText = wrapText(text, pdfFont, fontSize, page.getMediaBox().getWidth() - 2 * startX);
+                for (String line : wrappedText) {
+                    contentStream.showText(line);
+                    contentStream.newLineAtOffset(0, -leading);
+                }
+
+                contentStream.endText();
+
+                // Update the startY position for the next font block
+                startY -= wrappedText.size() * leading + 1.5 * leading; // Extra gap between font blocks
+            }
+
+            contentStream.close();
+            document.save("examples/src/main/resources/org/apache/pdfbox/examples/nepali/nepali.pdf");
+            System.out.println("PDF created successfully.");
+            document.close();
+
+
+        }
+        catch (IOException e){
+            System.out.println("PROBLEM: "+e.getMessage());
+        }
+    }
+
+    private static Map<String, String> getFontMap() {
+        String noto = "examples/src/main/resources/org/apache/pdfbox/resources/ttf/NotoSansDevanagariRegular.ttf";
+        String noto_the_group = "examples/src/main/resources/org/apache/pdfbox/resources/ttf/NotoTheGroup.ttf";
+        String kokila = "examples/src/main/resources/org/apache/pdfbox/resources/ttf/Kokila.ttf";
+        String nirmala = "examples/src/main/resources/org/apache/pdfbox/resources/ttf/Nirmala.ttf";
+        String nirmala_the_group = "examples/src/main/resources/org/apache/pdfbox/resources/ttf/NirmalaTheGroup.ttf";
+        String mangal = "examples/src/main/resources/org/apache/pdfbox/resources/ttf/MangalRegular.ttf";
+        String lohit = "examples/src/main/resources/org/apache/pdfbox/resources/ttf/LohitDevanagari.ttf";
+        String tiro = "examples/src/main/resources/org/apache/pdfbox/resources/ttf/TiroDevanagariHindiRegular.ttf";
+        String kalimati ="examples/src/main/resources/org/apache/pdfbox/resources/ttf/Kalimati.ttf";
+        String kanjirowa ="examples/src/main/resources/org/apache/pdfbox/resources/ttf/Kanjirowa.ttf";
+
+
+
+        Map<String, String> fontMap = new LinkedHashMap<>();
+//        fontMap.put("मङ्गल", mangal);
+//        fontMap.put("नोटो सान्स देवनागरी", noto);
+        fontMap.put("लोहित",lohit);
+        fontMap.put("कालिमाटी", kalimati);
+//        fontMap.put("निर्मला पुरानो", nirmala);
+//        fontMap.put("निर्मला नयाँ", nirmala_the_group);
+
+        return fontMap;
+    }
+    private static List<String> wrapText(String text, PDType0Font font, float fontSize, float maxWidth) throws IOException {
+        List<String> lines = new ArrayList<>();
+        String[] words = text.split(" ");
+        StringBuilder currentLine = new StringBuilder();
+
+        for (String word : words) {
+            String testLine = currentLine.length() == 0 ? word : currentLine + " " + word;
+            float textWidth = font.getStringWidth(testLine) / 1000 * fontSize;
+
+            if (textWidth > maxWidth) {
+                lines.add(currentLine.toString());
+                currentLine = new StringBuilder(word);
+            } else {
+                currentLine.append(currentLine.length() == 0 ? word : " " + word);
+            }
+        }
+
+        if (currentLine.length() > 0) {
+            lines.add(currentLine.toString());
+        }
+
+        return lines;
+    }
+
+    private static String getStringText(){
+
+        String loclText = "ख झ ५ ८ ९";
+        String akhnText ="क्ष त्र ज्ञ";
+        String rphfText = "र्य र्त्य र्त्स्य र्यि र्यी र्त्स्यि";
+        String rkrfText = "क्र प्र श्र क्ष्र त्र ज्ञ्र";
+        String blwfText = "ङ्र ट्र ठ्र ड्र ढ्र";
+        String halfText = "क्य ख्य ग्य छ्य थ्य ष्ट न्थ्य क्र्क र्क्क";
+        String cjctText = "ङ्क ङ्क्त ट्क ड्म द्ध द्म द्द द्द्र";
+        String presText = "क्क क्त क्न ग्न च्च ष्ट्र ल्ल";
+        String abvsText ="काँ किँ कीँ केँ कैँ कोँ कौँ र्काँ र्किँ र्कीँ र्केँ र्कैँ र्कोँ र्कौँ ";
+        String blwsText = "रु रू ट्रु ट्रू ङ्कु";
+        String pstsText ="की खी गी झी";
+        String halnText = "द् ट् ढ् ड्";
+
+        String textOnPdf = "वर्त्स्य  टर्कि  गर्छन् सङ्क्षिप्त निर् ";
+
+        return textOnPdf ;
+    }
+}