How it works
Three passes over every page — no rasterizer in the text path.
Read the content stream
Text is extracted with its real position, glyph run and clip state, so the reading order and the layout geometry survive the conversion intact.
Build a subset font
A WOFF face is synthesised from the PDF's own glyph outlines, carrying only the glyphs the page uses — the reason the text renders exactly as filed and still selects as text.
Emit self-contained HTML
Fonts, images and vector artwork are inlined as data URIs, so one file opens anywhere with no external requests — or a multi-page bundle with a viewer, if you prefer.
What you get
Four things the output guarantees.
Fully managed by default
The default engine is pure .NET with no native dependency to deploy, sign or audit. An optional native engine adds raster compositing where you want it.
Text that stays HTML
Every glyph the PDF draws becomes selectable, searchable, machine-readable text in the output — never an image of a word.
Safe by construction
A PDF is an untrusted document. Text is HTML-encoded, link schemes are allow-listed, and the result is safe to open in a browser and safe to serve on.
Cross-platform
Ships for 12 runtime identifiers across Windows, Linux and macOS — the same conversion, the same output, wherever the pipeline runs.
Ways to run it
A binary, an API, a server, or a browser tab.
Same engine behind all four. Pick the one that fits where the documents already are — and change your mind later without changing the output.
The DynDyn product family
One conversion core, one licence, one portal.
The company and its products, built on one engine — the same fidelity bar, licensed and managed from this portal.
DynDyn Technologies
Parent company
Document infrastructure for regulated reporting — the house the product family is built on.
DynDyn Convert Available
PDF / DOCX → HTML
Pixel-faithful conversion with live, selectable text — PDF today, DOCX on the same engine next.
DynDyn Trigger In development
Reactive workflow engine
Route a document through review, approval and filing steps — with conversion at the centre of the flow.
DynDyn Describe In development
Self-describing app metadata
Keep the descriptive layer of your documents structured and machine-readable, from authoring to filing.
Building on one of them? Talk to an engineer about the roadmap and early access.
Compliance
Built for compliance-grade documents
ESEF filings must carry real text, not pictures of text. Because DynDyn.Pdf never rasterizes the text layer, an inline-XBRL tagger — or a regulator's viewer — sees the same characters the PDF drew, at the same position on the page.
Pricing
Per deployment, not per seat.
Licensed per production deployment with a banded annual filing volume — not per seat, and not metered page-by-page.
Starter
€490/yr- 1 deployment
- ≤250 filings/yr (soft)
- All formats, all 12 platforms
- Email support, 3-day response
Pro
- 3 deployments
- ≤2,000 filings/yr (soft)
- Web API and batch conversion
- 1-day response
Enterprise
from €9,500/yr- Unlimited within the group
- Source-available under NDA
- 4-hour critical SLA, indemnification
- Named contact
Community is free for single-file output at 5 pages per run. Volume caps are soft: you'll see a warning at 80% and 100% of the annual filing band, but a run is never blocked for exceeding it.
Try it on one of your own filings.
A 14-day evaluation gives you the full Pro feature set on one deployment, with a footer credit and no card.