In order to use these styles we need to use this function getSampleStyleSheet:. To use other fonts than the predefined ones you need to add the specific TTF font file in the static folder. Afterwards you need to register that font like this:. This feature offered by ReportLab library is very important, especially if you need to write in a language that uses special characters, others than the ones in English.
After setting your custom paragraph styles it is time to use it. In order to do this, simply create an empty list and add to it any element that you want on your document. To add a paragraph in your document use Paragraph class by instantiating an object with the text you want to appear and the paragraph style.
But, between paragraphs or other elements there should be empty spaces. To do this ReportLab library came with a specific class called Spacer. So in order to create custom spaces between document elements we can use this method by adding it as an element on the page Spacer width, height.
Usually a PDF document can contain more than paragraphs, for example, we may want to add a table. This library came with specific classes for adding tables, you can find out more about that in the next section.
Another important flowable element of ReportLab library is represented by tables. The class used to draw a table into a document is named Table.
It can also have optional parameters used to customize rows and columns: colsWidths or rowHeights. In order to set some custom specifications for our table we can use TableStyle class. To customize our table we call setStyle function with an TableStyle object as parameter. This class came with a list of tuple commands, each of the tuples being represented like this:. After setting the style for our table we need to add it into the document like any ordinary flowable element by calling append function with table name as parameter.
In other projects we may need to show data in a more friendly and easy way to visualize it, other than displaying it in a table. For this we need to create charts based on that data. ReportLab library offers support to add some other graphics elements like charts.
The library can be used to generate different types of charts like line, bar or pie charts. In order to create a chart first we need to create a drawing area by instantiating a Drawing object.
For all our charts we've created other two methods to set chart title and chart legend. Software Development From A to Z. C and XML Primer. Learning Concurrent Programming in Scala, 2nd Edition. Essentials of Computer Architecture, 2nd Edition. Handbook of Big Data Technologies. Please enter your comment! Please enter your name here. One of the most important and common programming tasks to perform on the web is downloading files from different online resources.
A huge number of successful applications allow users to download files. So these are just a few web application functions that require downloading files:. Using requests module is one of the most popular way to download file. So first of all you need to install requests module, so run the following command on your terminal.
Now run this program and see what happens. Now run the above code and check your download folder, you will see the file has been downloaded. It does not require signup. It is a simple and quick way to generate PDFs. It includes features for beginner and advanced user. It is a software developed by Software as a Service SaaS company. You can edit PDF files from any devices. It is free. There are two separate versions of this software:. PDFDocs is a document management software for businesses.
Such software integrates with your existing application or system. An editor is a perfect choice for the people who like to create complex PDFs in less time. Three versions available for this software are 1 Standard, 2 Professional, and 3 Enterprise.
NET and C. The cloud platform allows you to convert any document without using any other software. It uses an algorithm which checks the PDF structure and effectively converts tables to various files. You do not require to download any software.
Other tools are also available to merge and split PDF documents. You can store files, images, and signature for reuse. Use this tool to create, view, make changes, and digitally sign PDF documents. It allows you to create, secure, and distribute various PDF documents. Skip to content. Collaboration for multiple users Security Mobile-friendliness Support and customer care service. Report a Bug. Previous Prev. Next Continue. Home Testing Expand child menu Expand.
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