業務で利用するPDFを取り込んだらどうだろうと思い実験。とりあえず、ページ移動とブックマークのようなものだけ。
NuGetから、
・PdfiumViewer
・PdfiumViewer.Native.x86.v8-xfa
の2つをインストール。
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using PdfiumViewer; using System; using System.Drawing; using System.Windows.Forms; namespace PDFViewer { public partial class Form1 : Form { PdfDocument _Document; int _PageNum = 0; int _PageW; int _PageH; public Form1() { InitializeComponent(); _Document = PdfDocument.Load(@"G:\Download\i.pdf"); var size = _Document.PageSizes[0]; _PageW = PointToPixel(size.Width); _PageH = PointToPixel(size.Height); HeaderEventAttach(); SideEventAttach(); RenderDocument(); } private void SideEventAttach() { MemoText.KeyDown += (s, e) => { if (e.KeyCode != Keys.Enter) return; var sender = (TextBox)s; if (sender.Text == "") return; listBox1.ValueMember = "Page"; listBox1.DisplayMember = "Title"; listBox1.Items.Add(new { Page = _PageNum.ToString(), Title = sender.Text + "#" + _PageNum.ToString() }); MemoText.Text = ""; }; listBox1.MouseDoubleClick += (s, e) => { if (listBox1.IndexFromPoint(new Point(e.X, e.Y)) == -1) return; if ((ModifierKeys & Keys.Control) == Keys.Control) { listBox1.Items.RemoveAt(listBox1.SelectedIndex); } else { dynamic items = listBox1.SelectedItem; int.TryParse(items.Page, out int result); _PageNum = result; RenderDocument(); } }; } private void HeaderEventAttach() { NextButton.Click += (s, e) => { _PageNum++; RenderDocument(); }; PrevButton.Click += (s, e) => { _PageNum--; RenderDocument(); }; PageNumText.KeyDown += (s, e) => { if (e.KeyCode == Keys.Enter) { var sender = (TextBox)s; int.TryParse(sender.Text, out int result); _PageNum = result; RenderDocument(); } if (e.KeyCode == Keys.Right) { NextButton.PerformClick(); RenderDocument(); } if (e.KeyCode == Keys.Left) { PrevButton.PerformClick(); RenderDocument(); } }; } private void RenderDocument() { pictureBox1.Image = _Document.Render(_PageNum, _PageW, _PageH, DeviceDpi, DeviceDpi, false); PageNumText.Text = Convert.ToString(_PageNum); } private int PointToPixel(float point) { return (int)(DeviceDpi * point) / 72; } } } |