PdfTextExtractor: New method HasText to determine if there is some text in the document.

VAR.PdfTools.Workbench/FrmPdfInfo.Designer.cs

@@ -38,13 +38,15 @@
             this.txtColumnName = new System.Windows.Forms.TextBox();
             this.txtFieldName = new System.Windows.Forms.TextBox();
             this.btnGetField = new System.Windows.Forms.Button();
+            this.txtText = new System.Windows.Forms.TextBox();
+            this.btnHasText = new System.Windows.Forms.Button();
             this.SuspendLayout();
             // 
             // lblOutputs
             // 
             this.lblOutputs.AutoSize = true;
             this.lblOutputs.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
-            this.lblOutputs.Location = new System.Drawing.Point(12, 130);
+            this.lblOutputs.Location = new System.Drawing.Point(12, 143);
             this.lblOutputs.Name = "lblOutputs";
             this.lblOutputs.Size = new System.Drawing.Size(51, 13);
             this.lblOutputs.TabIndex = 11;
@@ -88,11 +90,11 @@
             | System.Windows.Forms.AnchorStyles.Left) 
             | System.Windows.Forms.AnchorStyles.Right)));
             this.txtOutput.Font = new System.Drawing.Font("Consolas", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
-            this.txtOutput.Location = new System.Drawing.Point(15, 146);
+            this.txtOutput.Location = new System.Drawing.Point(15, 159);
             this.txtOutput.Multiline = true;
             this.txtOutput.Name = "txtOutput";
             this.txtOutput.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
-            this.txtOutput.Size = new System.Drawing.Size(457, 303);
+            this.txtOutput.Size = new System.Drawing.Size(457, 290);
             this.txtOutput.TabIndex = 7;
             // 
             // btnProcess
@@ -140,11 +142,30 @@
             this.btnGetField.UseVisualStyleBackColor = true;
             this.btnGetField.Click += new System.EventHandler(this.btnGetField_Click);
             // 
+            // txtText
+            // 
+            this.txtText.Location = new System.Drawing.Point(15, 111);
+            this.txtText.Name = "txtText";
+            this.txtText.Size = new System.Drawing.Size(142, 20);
+            this.txtText.TabIndex = 17;
+            // 
+            // btnHasText
+            // 
+            this.btnHasText.Location = new System.Drawing.Point(163, 109);
+            this.btnHasText.Name = "btnHasText";
+            this.btnHasText.Size = new System.Drawing.Size(75, 23);
+            this.btnHasText.TabIndex = 16;
+            this.btnHasText.Text = "HasText";
+            this.btnHasText.UseVisualStyleBackColor = true;
+            this.btnHasText.Click += new System.EventHandler(this.btnHasText_Click);
+            // 
             // 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.txtText);
+            this.Controls.Add(this.btnHasText);
             this.Controls.Add(this.txtFieldName);
             this.Controls.Add(this.btnGetField);
             this.Controls.Add(this.txtColumnName);
@@ -176,5 +197,7 @@
         private System.Windows.Forms.TextBox txtColumnName;
         private System.Windows.Forms.TextBox txtFieldName;
         private System.Windows.Forms.Button btnGetField;
+        private System.Windows.Forms.TextBox txtText;
+        private System.Windows.Forms.Button btnHasText;
     }
 }

VAR.PdfTools.Workbench/FrmPdfInfo.cs

@@ -17,6 +17,7 @@ namespace VAR.PdfTools.Workbench
             txtPdfPath.Text = Properties.Settings.Default.LastPdfPath;
             txtColumnName.Text = Properties.Settings.Default.LastColumnName;
             txtFieldName.Text = Properties.Settings.Default.LastFieldName;
+            txtText.Text = Properties.Settings.Default.LastText;
         }
 
         private void FrmPdfInfo_FormClosing(object sender, FormClosingEventArgs e)
@@ -24,6 +25,7 @@ namespace VAR.PdfTools.Workbench
             Properties.Settings.Default.LastPdfPath = txtPdfPath.Text;
             Properties.Settings.Default.LastColumnName = txtColumnName.Text;
             Properties.Settings.Default.LastFieldName = txtFieldName.Text;
+            Properties.Settings.Default.LastText = txtText.Text;
             Properties.Settings.Default.Save();
         }
 
@@ -132,5 +134,25 @@ namespace VAR.PdfTools.Workbench
             }
             txtOutput.Lines = fieldData.ToArray();
         }
+
+        private void btnHasText_Click(object sender, EventArgs e)
+        {
+            if (System.IO.File.Exists(txtPdfPath.Text) == false)
+            {
+                MessageBox.Show("File does not exist");
+                return;
+            }
+
+            PdfDocument doc = PdfDocument.Load(txtPdfPath.Text);
+
+            List<string> lines = new List<string>();
+            int pageNum = 1;
+            foreach (PdfDocumentPage page in doc.Pages)
+            {
+                PdfTextExtractor extractor = new PdfTextExtractor(page);
+                lines.Add(string.Format("Page({0}) : {1}", pageNum, Convert.ToString(extractor.HasText(txtText.Text))));
+            }
+            txtOutput.Lines = lines.ToArray();
+        }
     }
 }

VAR.PdfTools.Workbench/FrmPdfInfo.resx

@@ -112,9 +112,9 @@
     <value>2.0</value>
   </resheader>
   <resheader name="reader">
-    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
   <resheader name="writer">
-    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
 </root>

VAR.PdfTools.Workbench/Properties/Settings.Designer.cs

@@ -8,68 +8,67 @@
 // </auto-generated>
 //------------------------------------------------------------------------------
 
-namespace VAR.PdfTools.Workbench.Properties
+namespace VAR.PdfTools.Workbench.Properties {
-{
+    
-
+    
-
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "14.0.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "10.0.0.0")]
-    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
-    {
+        
-
         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
-
+        
-        public static Settings Default
+        public static Settings Default {
-        {
+            get {
-            get
-            {
                 return defaultInstance;
             }
         }
-
+        
         [global::System.Configuration.UserScopedSettingAttribute()]
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Configuration.DefaultSettingValueAttribute("")]
-        public string LastPdfPath
+        public string LastPdfPath {
-        {
+            get {
-            get
-            {
                 return ((string)(this["LastPdfPath"]));
             }
-            set
+            set {
-            {
                 this["LastPdfPath"] = value;
             }
         }
-
+        
         [global::System.Configuration.UserScopedSettingAttribute()]
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Configuration.DefaultSettingValueAttribute("")]
-        public string LastColumnName
+        public string LastColumnName {
-        {
+            get {
-            get
-            {
                 return ((string)(this["LastColumnName"]));
             }
-            set
+            set {
-            {
                 this["LastColumnName"] = value;
             }
         }
-
+        
         [global::System.Configuration.UserScopedSettingAttribute()]
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Configuration.DefaultSettingValueAttribute("")]
-        public string LastFieldName
+        public string LastFieldName {
-        {
+            get {
-            get
-            {
                 return ((string)(this["LastFieldName"]));
             }
-            set
+            set {
-            {
                 this["LastFieldName"] = value;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("")]
+        public string LastText {
+            get {
+                return ((string)(this["LastText"]));
+            }
+            set {
+                this["LastText"] = value;
+            }
+        }
     }
 }

VAR.PdfTools.Workbench/Properties/Settings.settings

@@ -11,5 +11,8 @@
     <Setting Name="LastFieldName" Type="System.String" Scope="User">
       <Value Profile="(Default)" />
     </Setting>
+    <Setting Name="LastText" Type="System.String" Scope="User">
+      <Value Profile="(Default)" />
+    </Setting>
   </Settings>
 </SettingsFile>

VAR.PdfTools/PdfTextExtractor.cs

@@ -696,6 +696,21 @@ namespace VAR.PdfTools
             return fieldData.OrderBy(elem => elem.GetX()).FirstOrDefault().VisibleText;
         }
 
+        public bool HasText(string text)
+        {
+            return HasText(text, true);
+        }
+
+        public bool HasText(string text, bool fuzzy)
+        {
+            PdfTextElement fieldTitle = FindElementByText(text, fuzzy);
+            if (fieldTitle == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
         #endregion
     }
 }