Jak drukować pliki PDF za pomocą Node.js

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/quickstart.js
// 1. Install: npm install pdf-to-printer
const printer = require('pdf-to-printer');

// 2. Print the PDF file (returns a Promise)
printer
  .print('./invoice.pdf')
  .then(() => console.log('Print job queued successfully.'))
  .catch((err) => console.error('Print failed:', err));

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/quickstart.js
// 1. Install: npm install pdf-to-printer
const printer = require('pdf-to-printer');

// 2. Print the PDF file (returns a Promise)
printer
  .print('./invoice.pdf')
  .then(() => console.log('Print job queued successfully.'))
  .catch((err) => console.error('Print failed:', err));

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/setup.sh
mkdir pdf-printer
cd pdf-printer
npm init -y
npm install pdf-to-printer

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/setup.sh
mkdir pdf-printer
cd pdf-printer
npm init -y
npm install pdf-to-printer

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/basic-print.js
const fs = require('fs').promises;
const printer = require('pdf-to-printer');

async function printPDF(filePath) {
  // Verify the file exists before sending to printer
  await fs.access(filePath);

  const stats = await fs.stat(filePath);
  if (stats.size === 0) {
    throw new Error('PDF file is empty');
  }

  await printer.print(filePath);
  console.log(`Print job queued: ${filePath}`);
}

printPDF('./pdfs/invoice.pdf').catch((err) => {
  if (err.code === 'ENOENT') {
    console.error('File not found:', err.path);
  } else {
    console.error('Print error:', err.message);
  }
});

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/basic-print.js
const fs = require('fs').promises;
const printer = require('pdf-to-printer');

async function printPDF(filePath) {
  // Verify the file exists before sending to printer
  await fs.access(filePath);

  const stats = await fs.stat(filePath);
  if (stats.size === 0) {
    throw new Error('PDF file is empty');
  }

  await printer.print(filePath);
  console.log(`Print job queued: ${filePath}`);
}

printPDF('./pdfs/invoice.pdf').catch((err) => {
  if (err.code === 'ENOENT') {
    console.error('File not found:', err.path);
  } else {
    console.error('Print error:', err.message);
  }
});

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/generate-and-print.js
const { PdfDocument } = require('@ironsoftware/ironpdf');
const printer = require('pdf-to-printer');

async function generateAndPrint(htmlContent, outputPath) {
  // Render HTML to a PDF file using IronPDF
  const pdf = await PdfDocument.fromHtml(htmlContent);
  await pdf.saveAs(outputPath);

  // Send the generated file to the default printer
  await printer.print(outputPath);
  console.log(`Generated and printed: ${outputPath}`);
}

generateAndPrint('<h1>Monthly Report</h1><p>Sales data for May 2026.</p>', './pdfs/report.pdf');

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/generate-and-print.js
const { PdfDocument } = require('@ironsoftware/ironpdf');
const printer = require('pdf-to-printer');

async function generateAndPrint(htmlContent, outputPath) {
  // Render HTML to a PDF file using IronPDF
  const pdf = await PdfDocument.fromHtml(htmlContent);
  await pdf.saveAs(outputPath);

  // Send the generated file to the default printer
  await printer.print(outputPath);
  console.log(`Generated and printed: ${outputPath}`);
}

generateAndPrint('<h1>Monthly Report</h1><p>Sales data for May 2026.</p>', './pdfs/report.pdf');

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/custom-options.js
const printer = require('pdf-to-printer');

async function printWithOpcjas(filePath) {
  // List available printers to find the correct name
  const printers = await printer.getPrinters();
  printers.forEach((p) => {
    console.log(`${p.name} -- default: ${p.isDefault}`);
  });

  const options = {
    printer: 'HP LaserJet Pro',  // Exact name from getPrinters()
    copies: 2,                   // Number of copies
    pages: '1-3,5',              // Pages to print (optional)
    scale: 'fit',                // 'fit' | 'noscale' | 'shrink'
    orientation: 'portrait',     // 'portrait' | 'landscape'
  };

  await printer.print(filePath, options);
  console.log(`Printed ${options.copies} copies to "${options.printer}"`);
}

printWithOpcjas('./pdfs/shipping-label.pdf').catch(console.error);

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/custom-options.js
const printer = require('pdf-to-printer');

async function printWithOpcjas(filePath) {
  // List available printers to find the correct name
  const printers = await printer.getPrinters();
  printers.forEach((p) => {
    console.log(`${p.name} -- default: ${p.isDefault}`);
  });

  const options = {
    printer: 'HP LaserJet Pro',  // Exact name from getPrinters()
    copies: 2,                   // Number of copies
    pages: '1-3,5',              // Pages to print (optional)
    scale: 'fit',                // 'fit' | 'noscale' | 'shrink'
    orientation: 'portrait',     // 'portrait' | 'landscape'
  };

  await printer.print(filePath, options);
  console.log(`Printed ${options.copies} copies to "${options.printer}"`);
}

printWithOpcjas('./pdfs/shipping-label.pdf').catch(console.error);

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/batch-print.js
const printer = require('pdf-to-printer');
const fs = require('fs').promises;
const path = require('path');

class BatchPrinter {
  constructor(printerName = null) {
    this.printerName = printerName;
    this.queue = [];
  }

  async addFiles(filePaths) {
    for (const filePath of filePaths) {
      try {
        await fs.access(filePath);
        this.queue.push(filePath);
      } catch {
        console.warn(`Skipped (not found): ${filePath}`);
      }
    }
  }

  async printAll(options = {}) {
    const results = { successful: 0, failed: 0, errors: [] };

    for (const filePath of this.queue) {
      try {
        const printOpcjas = {
          ...options,
          ...(this.printerName && { printer: this.printerName }),
        };
        await printer.print(filePath, printOpcjas);
        results.successful++;
        console.log(`Printed: ${path.basename(filePath)}`);
      } catch (err) {
        results.failed++;
        results.errors.push({ file: filePath, error: err.message });
      }
    }

    this.queue = [];
    return results;
  }
}

// Usage: print monthly reports to a specific printer
(async () => {
  const batch = new BatchPrinter('Office Printer A3');

  await batch.addFiles([
    './reports/january.pdf',
    './reports/february.pdf',
    './reports/march.pdf',
  ]);

  const results = await batch.printAll({ copies: 1 });
  console.log(`Done -- ${results.successful} printed, ${results.failed} failed.`);
})();

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/batch-print.js
const printer = require('pdf-to-printer');
const fs = require('fs').promises;
const path = require('path');

class BatchPrinter {
  constructor(printerName = null) {
    this.printerName = printerName;
    this.queue = [];
  }

  async addFiles(filePaths) {
    for (const filePath of filePaths) {
      try {
        await fs.access(filePath);
        this.queue.push(filePath);
      } catch {
        console.warn(`Skipped (not found): ${filePath}`);
      }
    }
  }

  async printAll(options = {}) {
    const results = { successful: 0, failed: 0, errors: [] };

    for (const filePath of this.queue) {
      try {
        const printOpcjas = {
          ...options,
          ...(this.printerName && { printer: this.printerName }),
        };
        await printer.print(filePath, printOpcjas);
        results.successful++;
        console.log(`Printed: ${path.basename(filePath)}`);
      } catch (err) {
        results.failed++;
        results.errors.push({ file: filePath, error: err.message });
      }
    }

    this.queue = [];
    return results;
  }
}

// Usage: print monthly reports to a specific printer
(async () => {
  const batch = new BatchPrinter('Office Printer A3');

  await batch.addFiles([
    './reports/january.pdf',
    './reports/february.pdf',
    './reports/march.pdf',
  ]);

  const results = await batch.printAll({ copies: 1 });
  console.log(`Done -- ${results.successful} printed, ${results.failed} failed.`);
})();

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/secure-print.js
const printer = require('pdf-to-printer');
const crypto = require('crypto');

class AuditedPrinter {
  constructor() {
    this.log = [];
  }

  async print(filePath, userId, options = {}) {
    const jobId = crypto.randomBytes(8).toString('hex');
    const entry = { jobId, userId, filePath, options, status: 'pending', startedAt: new Date().toISOString() };
    this.log.push(entry);

    try {
      await printer.print(filePath, options);
      entry.status = 'completed';
      entry.completedAt = new Date().toISOString();
      return { success: true, jobId };
    } catch (err) {
      entry.status = 'failed';
      entry.error = err.message;
      throw err;
    }
  }

  getLog(userId = null) {
    return userId ? this.log.filter((e) => e.userId === userId) : this.log;
  }
}

// Usage
const auditedPrinter = new AuditedPrinter();

(async () => {
  await auditedPrinter.print('./contracts/nda-2026.pdf', 'user-42', { copies: 1 });
  console.log('Audit log:', auditedPrinter.getLog('user-42'));
})();

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-print-pdf/secure-print.js
const printer = require('pdf-to-printer');
const crypto = require('crypto');

class AuditedPrinter {
  constructor() {
    this.log = [];
  }

  async print(filePath, userId, options = {}) {
    const jobId = crypto.randomBytes(8).toString('hex');
    const entry = { jobId, userId, filePath, options, status: 'pending', startedAt: new Date().toISOString() };
    this.log.push(entry);

    try {
      await printer.print(filePath, options);
      entry.status = 'completed';
      entry.completedAt = new Date().toISOString();
      return { success: true, jobId };
    } catch (err) {
      entry.status = 'failed';
      entry.error = err.message;
      throw err;
    }
  }

  getLog(userId = null) {
    return userId ? this.log.filter((e) => e.userId === userId) : this.log;
  }
}

// Usage
const auditedPrinter = new AuditedPrinter();

(async () => {
  await auditedPrinter.print('./contracts/nda-2026.pdf', 'user-42', { copies: 1 });
  console.log('Audit log:', auditedPrinter.getLog('user-42'));
})();