Simple software, fairly priced.

A small studio making Mac, iPhone and iPad apps that respect your time. No subscriptions. No bloat. Just tools that work.

AddToPDF icon AddToPDF $2.99 pay once

The simplest PDF editor for Mac, iPhone and iPad. Scan with your phone, finish on your Mac. No subscription, no cloud, no learning curve — and one purchase covers all three devices.

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Add text anywhere

Click on any PDF and start typing. Text stays searchable and vector — never rasterized.

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Sign documents

Draw, type, or upload your signature. Place it, resize it, done. Saved for reuse.

Fill forms

Auto-detects existing form fields. Text inputs, checkboxes, dropdowns — just tap and fill.

Organise pages

Rotate, delete, reorder and add pages. Drag a thumbnail to move it — it saves cleanly.

On the Mac

AddToPDF on macOS — add text to your PDF AddToPDF on macOS — sign documents AddToPDF on macOS — merge PDFs (a Mac-only feature) AddToPDF on macOS — fill forms

On iPhone and iPad

AddToPDF on iPhone — scan paper or open a PDF AddToPDF on iPhone — sign with your finger AddToPDF on iPhone — tap a field and fill the form

See all features, what differs between Mac and iPhone, & the full FAQ ›

Everything else it does.

The Mac and iPhone versions are not identical. See the full side-by-side table ›

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