FrmPdfInfo: Pages selector.

A simple textbox where you can put page numbers separated by comma. And ranges joined by dash.

VAR.PdfTools.Workbench/FrmPdfInfo.Designer.cs

@@ -47,6 +47,7 @@
             this.btnGetField3 = new System.Windows.Forms.Button();
             this.txtField3 = new System.Windows.Forms.TextBox();
             this.btnGetColumn3 = new System.Windows.Forms.Button();
+            this.txtPages = new System.Windows.Forms.TextBox();
             this.SuspendLayout();
             // 
             // lblOutputs
@@ -237,11 +238,20 @@
             this.btnGetColumn3.UseVisualStyleBackColor = true;
             this.btnGetColumn3.Click += new System.EventHandler(this.btnGetColumn3_Click);
             // 
+            // txtPages
+            // 
+            this.txtPages.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.txtPages.Location = new System.Drawing.Point(397, 82);
+            this.txtPages.Name = "txtPages";
+            this.txtPages.Size = new System.Drawing.Size(75, 20);
+            this.txtPages.TabIndex = 27;
+            // 
             // FrmPdfInfo
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.ClientSize = new System.Drawing.Size(484, 461);
+            this.Controls.Add(this.txtPages);
             this.Controls.Add(this.btnHasText3);
             this.Controls.Add(this.btnGetField3);
             this.Controls.Add(this.txtField3);
@@ -291,5 +301,6 @@
         private System.Windows.Forms.Button btnGetField3;
         private System.Windows.Forms.TextBox txtField3;
         private System.Windows.Forms.Button btnGetColumn3;
+        private System.Windows.Forms.TextBox txtPages;
     }
 }

VAR.PdfTools.Workbench/FrmPdfInfo.cs

@@ -191,6 +191,54 @@ namespace VAR.PdfTools.Workbench
             Action_GetColumn(pdfPath, column);
         }
 
+        private IEnumerable<int> GetSelectedPages(int maxPages)
+        {
+            string pages = txtPages.Text;
+            if (string.IsNullOrEmpty(pages))
+            {
+                return Enumerable.Range(1, maxPages);
+            }
+
+            string[] pagesParts;
+            if (pages.Contains(","))
+            {
+                pagesParts = pages.Split(',');
+            }
+            else
+            {
+                pagesParts = new string[] { pages };
+            }
+            List<int> listPages = new List<int>();
+            foreach (string part in pagesParts)
+            {
+                if (part.Contains("-"))
+                {
+                    string[] range = part.Split('-');
+                    if (range.Length == 2) {
+                        int pageStart;
+                        int pageEnd;
+                        if(int.TryParse(range[0], out pageStart) && int.TryParse(range[1], out pageEnd))
+                        {
+                            listPages.AddRange(Enumerable.Range(pageStart, (pageEnd - pageStart) + 1));
+                        }
+                    }
+                }
+                else
+                {
+                    int pageNum;
+                    if(int.TryParse(part, out pageNum))
+                    {
+                        listPages.Add(pageNum);
+                    }
+                }
+            }
+            if(listPages.Count == 0)
+            {
+                listPages.AddRange(Enumerable.Range(1, maxPages));
+            }
+            return listPages;
+        }
+
         private void Action_HasText(string pdfPath, string text)
         {
             if (System.IO.File.Exists(pdfPath) == false)
@@ -201,10 +249,13 @@ namespace VAR.PdfTools.Workbench
 
             PdfDocument doc = PdfDocument.Load(pdfPath);
 
+            IEnumerable<int> selectedPages = GetSelectedPages(doc.Pages.Count);
             List<string> lines = new List<string>();
-            int pageNum = 1;
+            int pageNum = 0;
             foreach (PdfDocumentPage page in doc.Pages)
             {
+                pageNum++;
+                if (selectedPages.Contains(pageNum) == false) { continue; }
                 PdfTextExtractor extractor = new PdfTextExtractor(page);
                 lines.Add(string.Format("Page({0}) : {1}", pageNum, Convert.ToString(extractor.HasText(text))));
             }
@@ -221,9 +272,13 @@ namespace VAR.PdfTools.Workbench
 
             PdfDocument doc = PdfDocument.Load(pdfPath);
 
+            IEnumerable<int> selectedPages = GetSelectedPages(doc.Pages.Count);
             var fieldData = new List<string>();
+            int pageNum = 0;
             foreach (PdfDocumentPage page in doc.Pages)
             {
+                pageNum++;
+                if (selectedPages.Contains(pageNum) == false) { continue; }
                 PdfTextExtractor extractor = new PdfTextExtractor(page);
                 fieldData.Add(extractor.GetField(field));
             }
@@ -240,9 +295,13 @@ namespace VAR.PdfTools.Workbench
 
             PdfDocument doc = PdfDocument.Load(pdfPath);
 
+            IEnumerable<int> selectedPages = GetSelectedPages(doc.Pages.Count);
             var columnData = new List<string>();
+            int pageNum = 0;
             foreach (PdfDocumentPage page in doc.Pages)
             {
+                pageNum++;
+                if (selectedPages.Contains(pageNum) == false) { continue; }
                 PdfTextExtractor extractor = new PdfTextExtractor(page);
                 columnData.AddRange(extractor.GetColumn(column));
             }
@@ -265,9 +324,13 @@ namespace VAR.PdfTools.Workbench
             lines.Add(string.Format("Filename : {0}", baseDocumentFilename));
             lines.Add(string.Format("Number of Pages : {0}", doc.Pages.Count));
 
-            int pageNumber = 1;
+            IEnumerable<int> selectedPages = GetSelectedPages(doc.Pages.Count);
+            int pageNumber = 0;
             foreach (PdfDocumentPage page in doc.Pages)
             {
+                pageNumber++;
+                if (selectedPages.Contains(pageNumber) == false) { continue; }
+
                 PdfPageRenderer pdfPageRenderer = new PdfPageRenderer(page);
                 Bitmap bmp = pdfPageRenderer.Render();
 
@@ -276,7 +339,6 @@ namespace VAR.PdfTools.Workbench
                 // Save image to disk
                 string fileName = Path.Combine(baseDocumentPath, string.Format("{0}_{1:0000}.png", baseDocumentFilename, pageNumber));
                 bmp.Save(fileName, ImageFormat.Png);
-                pageNumber++;
             }
 
             txtOutput.Lines = lines.ToArray();