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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
You may want to look at a PDF library (Python/PHP/Perl/Java, etc.) You can do all you mention with a lot of flexibility. tcPDF comes immediately to mind, there is also a Python port. If you want to learn a language, i recommend python. Learning how to make a basic program when it is something that you want, and you know what you want is a great way to learn.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.