Python flask download file

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Flask The Python micro framework for building web applications. SourceForge is not affiliated with Flask. Add a Review. Get project updates , sponsored content from our select partners, and more. Full Name. Phone Number. Job Title. Company Size Company Size: 1 - 25 26 - 99 - - 1, - 4, 5, - 9, 10, - 19, 20, or More. Get notifications on updates for this project. For that we need to get user file, process remove watermark from pdf file and provide processed file to user for download.

We will create a simple HTML page that provides a button to select file and another button to upload that file. Let the HTML page be index. Now we render this page as the main page i. We need to specify a directory to the Flask app where the uploaded files would be stored.

Above line creates a uploads folder in the same directory where the src code of the site is stored. We should also check for file extension that the user is uploading as there would be some specific type of file that the site can process. Also there is security issue if the user can upload any type of file. User might upload html file that can cause XSS cross site-scripting problems. For this post, we only need pdf file extensions as this Flask app would remove watermark from pdf files created by CamScanner App Famous App for scanning documents through Mobile Camera.

Your email address will not be published. Roy Tutorials Technical… Theoretical… Practical…. Introduction Here I am going to show a simple example on how to download a file from web application using Python Flask. Prerequisites Python 3. Project Directory First step is to create a project root directory under which I will put all the required files for the project. Configuring Flask Create the below app. UI Template Now create a download.

Testing the Application Now navigate to the project root directory from command line tool and execute the command python main. Source Code Download. You have to stop browser cache using http header response. Leave a Reply Cancel reply Your email address will not be published. Search for:.