Best Markup: Document Annotation Alternatives & Competitors in 2025

PDF Reader is the one app you can rely on when you need a portable solution to work with PDFs.

Bring any document to life!

As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more

Try for free paid Free Trial $15.0 / Monthly (125+ Documents)

Convert PDF to Word, Excel, JPG, & from. Also compress PDF

Create PDF or Image from HTML styled with tailwindcss

Free Online Form Builder & Form Creator

freemium $34.0 / Monthly (25 Forms / 1,000 Monthly Submissions)

Team-based interface design, Figma lets you collaborate on designs in real time.

A flexible API for creating, filling, and signing PDFs.

Open Source

Workspace to highlight, organize & collaborate on your research articles.

Toolkit that brings design thinking full circle

Convert any HTML documents to high-fidelity PDF using a single POST request

freemium $9.0 / Monthly (500 conversions and up to 5Mb per generated PDF.)

PDF creation with text recognition and scanner support. Features email and webpage import to PDF.

Sketch library for user flows/content maps/annotations

Record conversion funnel, heatmap & user video on prototype