Introducing Apryse Answers: Real Developer Questions, Real PDF Solutions

Developers turn to Reddit every day for help solving document-processing challenges, from generating PDFs with dynamic data to handling bulk document workflows and HTML-to-PDF headaches.

That is the idea behind Apryse Answers: Reddit Rundown, a new video series in which Apryse Developer Relations Manager April Schuppel takes real developer questions from Reddit and shows how they can actually be solved using Apryse SDKs, complete with working demos and sample code.

In Episode 1, April tackles one of the most common developer pain points: PDF generation. From generating individual receipts to programmatically creating thousands of reports, the episode walks through practical approaches to modern document generation workflows using a live demo application and GitHub project.

There are dozens of approaches to document generation, including open-source JavaScript libraries such as PDF-Lib. However, customization, latency, and generating polished, professional documents beyond simple, bare-bones text is where basic libraries fall short. While Apryse generates documents by replacing {{strings}} in a polished DOCX template, many PDF generation libraries do PDF creation, but not generation from template.

Some developers choose html-to-pdf workflows, using familiar html and css for layout and style, then converting to PDF with a variety of tools. However, this workflow can cause headaches, especially with issues with fonts, zoom levels, and page breaks.

Let’s take a look at the questions April took on in this episode of Apryse Answers.

This poster in the r/BusinessIntelligence community wrote, “I'm a developer from a small startup, and we are looking for a tool to automate the generation of tens of thousands (maybe more) of PDF reports (2-3 pagers, mainly graphs and texts).

Process will run at a predefined frequency (weekly or monthly) and will look something like:

Are you familiar with a tool that could handle such volume and that can be automated ?

Other solution is custom dev, but it'll likely be pricier and the templates will be maintained by the dev.”

This user points out several common pain points, including:

In the community r/node, a user posted:

“Hey everyone, currently in my app I have to generate a PDF report of the items bought by a given user, but I have no idea how to do that.

I have created some static PDF (or replacing a few values), but I have no clue on how to implement it with dynamic data, where the PDF could have 1 or dozens of pages.

Do you guys know of any library / approach / tutorial that would help me achieve that?

Thanks in advance!”

This question highlights that while generating static PDFs is fairly simple, dynamic data makes it more challenging. For example, if a Name field could range from 10 characters to 100, templates and formatting can break.

In the community r/electronjs, one user asked:

“I got an html and css template, it's an invoice. I want to fill the template invoice with customer data. Then press ok. And I want electron to generate a pdf file base on the filled template. So my question is, would electron be able to do that?”

This is one example of a developer choosing the html to pdf workflow for document generation. Apryse SDK does support Electron, but document generation is much simpler with Apryse, without using tempermental, high-maintenance, potentially high-maintenance HTML workflows. Let’s take a look:

As you saw in Apryse Answers Episode 1, April shared the solutions to all these problems in a simple application you can check out on GitHub.

With Apryse, April set up a few different workflows to generate PDF from template, including individual documents and programmatic bulk generation.

Here’s how it works:

By using a Microsoft Office document as the template, end users are able to customize document templates using familiar tools, achieving a polished, professional look. Because Apryse takes in replacement data in JSON format, the SDK supports dynamic data such as from your database. And with the entire process self-contained without external dependencies, developers can avoid compliance concerns related to data security and privacy. In addition to images and text, the SDK also supports other document formatting such as tables. Text is automatically reflowed to present data correctly.

Check out the demo of Apryse Document Generation.

The generation framework requires minimal code to get up and running. Simply initiate a normal Office conversion, but with the optional TemplateParamsJson parameter set:

There are plenty more developer questions across Reddit communities, and April will continue breaking down how Apryse can help solve them in future episodes.

Next week’s episode focuses on PDF conversion workflows and common document transformation challenges developers face.

Want to explore the sample app and try Apryse Document Generation yourself? Check out the demo, sample code, and documentation to learn more.