Remove executeSingle from ReadPdf node

packages/nodes-base/nodes/ReadPdf.node.ts

@@ -1,6 +1,6 @@
 import {
 	BINARY_ENCODING,
-	IExecuteSingleFunctions,
+	IExecuteFunctions,
 } from 'n8n-core';
 
 import {
@@ -37,22 +37,30 @@ export class ReadPdf implements INodeType {
 		],
 	};
 
+	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
+		const items = this.getInputData();
 
-	async executeSingle(this: IExecuteSingleFunctions): Promise<INodeExecutionData> {
+		const returnData: INodeExecutionData[] = [];
+		const length = items.length as unknown as number;
+		let item: INodeExecutionData;
 
-		const binaryPropertyName = this.getNodeParameter('binaryPropertyName') as string;
+		for (let itemIndex = 0; itemIndex < length; itemIndex++) {
 			
-		const item = this.getInputData();
+			item = items[itemIndex];
+			const binaryPropertyName = this.getNodeParameter('binaryPropertyName', itemIndex) as string;
+
+			if (item.binary === undefined) {
+				item.binary = {};
+			}
+
+			const binaryData = Buffer.from(item.binary[binaryPropertyName].data, BINARY_ENCODING);
+			returnData.push({
+				binary: item.binary,
+				json: await pdf(binaryData),
+			});
 			
-		if (item.binary === undefined) {
-			item.binary = {};
 		}
-
+		return this.prepareOutputData(returnData);
-		const binaryData = Buffer.from(item.binary[binaryPropertyName].data, BINARY_ENCODING);
-
-		return {
-			binary: item.binary,
-			json: await pdf(binaryData),
-		};
 	}
+
 }