Diagrammer.Core

0.2.39

Sources/DiaConvertImageToPDF/ConvertPngToPdf.cs

                                using iText.Kernel.Pdf;

using iText.Layout;

using iText.Layout.Element;

using iText.IO.Image;

using System;

namespace DiaConvertImageToPDF

{

    internal class ConvertImageToPDF

    {

        internal static bool ConvertPngToPdf(string pngFilePath, string pdfFilePath)

        {

            try

            {

                // Create a new PDF document

                using var pdfWriter = new PdfWriter(pdfFilePath);

                using var pdfDocument = new PdfDocument(pdfWriter);

                // Get image dimensions to set page size

                var tempImageData = ImageDataFactory.Create(pngFilePath);

                var pageSize = new iText.Kernel.Geom.PageSize(tempImageData.GetWidth(), tempImageData.GetHeight());

                pdfDocument.SetDefaultPageSize(pageSize);

                // Create Document with page properties

                var document = new Document(pdfDocument);

                // Load the PNG image

                ImageData imageData = ImageDataFactory.Create(pngFilePath);

                Image image = new Image(imageData);

                // Adjust image size

                image.SetAutoScaleWidth(true); // Scale image to fit page width

                image.SetAutoScaleHeight(true);

                // Add the image to the document

                document.Add(image);

                // Close the document

                document.Close();

                return true;

            }

            catch (Exception ex)

            {

                Console.WriteLine($"Error generating pdf from image: {ex.Message}");

                return false; // Or throw a more specific exception

            }

        }

        public static string GenerateToken(Byte length)

        {

            var bytes = new byte[length];

            var rnd = new Random();

            rnd.NextBytes(bytes);

            return Convert.ToBase64String(bytes).Replace("=", "").Replace("+", "").Replace("/", "");

        }

    }

}