case study · Web Applications

HelperDoc — AI Form Filling

A web app that reads any official form — even flattened PDFs, scans and photos — and fills it from details you have already confirmed, leaving the layout untouched.

Get a quote for a project like this Visit helperdoc.com
At a glance
10
interface languages
~2
credits for a typical form
EU
encrypted document storage
3
tools: form filler, PDF editor, CV maker
HelperDoc — AI Form Filling — full page design
Scroll inside the frame to see the full page.
01 · The brief

What Kamil Ehsan needed

Official forms are often flattened PDFs, scans or photos with no fillable fields, and people retype the same details on every one. HelperDoc needed to read a form in any language, fill it accurately, and never guess.

02 · What I built

How it works

A Next.js web app where users upload a PDF, JPG or PNG. It reads every field — including flattened government PDFs, scans and handwriting — matches values from details the user has already confirmed, flags anything uncertain, and writes the answers onto the original page. It includes saved details behind a passcode, credit-based pricing with free starter credits, free form templates, and encrypted EU-only storage with automatic deletion after 30 days.

  • Upload a PDF, JPG or PNG and have every field read — even when the form has no fillable fields
  • Answers written onto the original page, with the layout untouched
  • Uncertain fields flagged for review instead of guessed
  • Saved details behind a passcode, reused across forms
  • Forms library, PDF editor and a free CV maker
  • Plans for individuals and teams, plus an enterprise page
03 · Tech stack

What it runs on

The tools behind the build and the job each one does.

01Next.jsMarketing site, dashboard, document editor and billing in one app.
02AI document readingReads flattened PDFs, scans and photos, matches confirmed details and flags anything uncertain.
03Credit billingPay per form instead of a subscription: credits never expire, and a fill that fails on HelperDoc’s side is refunded automatically.
04Encryption & privacyDocuments encrypted and stored in the EU; saved details sit behind a passcode with their own key.
05InternationalisationTen interface languages with regional variants, linked for search engines.
06Structured dataSoftware application and offer markup so the product shows properly in search.
The result04 · Outcome

What it delivered

A live product that turns an unfamiliar official form into upload, review and download — with every uncertain field flagged instead of guessed.

  • Reads flattened PDFs, scans and photos
  • Flags uncertain fields instead of guessing
  • Original form layout left untouched
  • Encrypted EU storage, deleted after 30 days
05 · Check it yourself

Don’t just take my word for it

Open the project and see it working. The stack and numbers on this page were checked against the live build on 15 September 2026.

How it ran

The same process for every project

One person from first call to launch. See the full process

  1. 01Brief and scopeWe agree what it has to do, who it is for and what counts as done.
  2. 02DesignLayouts for the key screens, shaped around what turns visitors into customers.
  3. 03Build and testBuilt, checked on phones and desktops, and connected to the tools the business uses.
  4. 04Launch and supportLive on the real domain, with 12 months of support included.
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