merge pdf tool

Below is a complete HTML, CSS, and JavaScript code for a web application that allows users to merge PDF files and download the merged PDF. The styling is colorful and responsive: ```html

Merge PDF

``` This code sets up a simple web page where users can select multiple PDF files, click a "Merge PDF" button, and then download the merged PDF file. The styling is done using CSS to make the interface more appealing and responsive. Here's a brief overview of the code: - HTML: Defines the structure of the web page, including the file input element and the merge button. - CSS: Provides styling to the elements to make them visually appealing and responsive. - JavaScript: Adds functionality to the merge button. When clicked, it gathers the selected PDF files, sends them to the server to merge, and then downloads the merged PDF file. Note that the server-side logic for merging PDF files is not included in this code. You would need to implement that separately, and the client-side JavaScript code assumes that there is an endpoint (`/merge-pdf`) on the server that accepts a POST request with the PDF files to merge.