82 lines
2.6 KiB
C#
82 lines
2.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace VAR.PdfTools.Workbench
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{
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public partial class FrmPdfInfo : Form
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{
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public FrmPdfInfo()
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{
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InitializeComponent();
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}
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private void FrmPdfInfo_Load(object sender, EventArgs e)
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{
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txtPdfPath.Text = Properties.Settings.Default.LastPdfPath;
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}
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private void FrmPdfInfo_FormClosing(object sender, FormClosingEventArgs e)
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{
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Properties.Settings.Default.LastPdfPath = txtPdfPath.Text;
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Properties.Settings.Default.Save();
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}
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private void btnBrowse_Click(object sender, EventArgs e)
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{
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var dlgFile = new OpenFileDialog();
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DialogResult result = dlgFile.ShowDialog();
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if (result == DialogResult.OK)
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{
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txtPdfPath.Text = dlgFile.FileName;
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}
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}
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private void btnProcess_Click(object sender, EventArgs e)
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{
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if (System.IO.File.Exists(txtPdfPath.Text) == false)
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{
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MessageBox.Show("File does not exist");
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return;
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}
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PdfDocument doc = PdfDocument.Load(txtPdfPath.Text);
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int nObjects = doc.Objects.Count;
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List<PdfStream> streams = doc.Objects.Where(obj => obj.Data.Type == PdfElementTypes.Stream).Select(obj => (PdfStream)obj.Data).ToList();
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int nStreams = streams.Count;
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List<PdfStream> streamsWithFilters = streams
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.Where(stream => stream.Dictionary.Values.ContainsKey("Filter"))
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.ToList();
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var streamFilters = new List<string>();
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foreach(PdfStream stream in streamsWithFilters)
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{
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IPdfElement filter = stream.Dictionary.Values["Filter"];
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if (filter is PdfArray)
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{
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filter = ((PdfArray)filter).Values[0];
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}
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if (filter is PdfName)
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{
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streamFilters.Add(((PdfName)filter).Value);
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}
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}
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txtOutput.Lines = new string[]
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{
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string.Format("Number of Objects: {0}", nObjects),
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string.Format("Number of Streams: {0}", nStreams),
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string.Format("Unsuported Stream Filters: {0}", string.Join(", ", streamFilters.Distinct().ToArray())),
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};
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}
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}
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}
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