Features
A serious PDF toolbox,
already installed.
View, annotate, sign, and transform PDFs inside NoteX Desktop. Forty-plus tools, all running locally, so documents never leave your machine to get fixed.
PDFX · desktop
PDFs open where
your notes live.
Double-click any PDF and it opens inside NoteX in a full viewer: thumbnails, bookmarks, search, and smooth rendering. No detour through a browser tab or a bloated reader, and no losing your train of thought.
Then the toolbox turns the viewer into a workshop: more than 40 tools that would otherwise be five different websites and two subscriptions.
The toolbox
Five categories,
forty-plus tools.
📄 Organize
Merge, split, compress, rotate, crop, extract or remove pages, reorder by drag and drop, remove blank pages, flatten.
🎨 Enhance
Watermarks, page numbers, stamps, added text and images, contrast adjustment, page scaling, n-up layouts, overlays, booklet imposition.
🔒 Secure
Add or remove passwords, set permissions, redact content, sanitize hidden data, strip annotations.
🔍 Analyze
Document info, side-by-side compare, extract images, inspect embedded JavaScript, edit bookmarks and metadata.
✍️ Work
Fill forms, sign with a drawn signature, annotate with drawing and highlights, attach files, repair damaged PDFs, unlock forms.
🔐 And it is all local
Every tool runs on your machine. Contracts and reports never get uploaded to a converter site you found in a hurry.
Notes + PDFs
Research lives next to
what you wrote about it.
Attach a PDF to a note, open it in a split beside your writing, and keep the annotated source one click from your summary. For research notes, contract reviews, and paper reading, the whole loop stays in one window.
The block editorPDFX ships with the desktop app. No add-on purchase, no upload limits.
Frequently asked questions
Is PDFX an extra purchase?
No. PDFX ships inside NoteX Desktop as a built-in extension. Open a PDF and it is there.
Do PDF tools upload my files anywhere?
No. Every tool runs locally on your machine. That is a deliberate security choice: sensitive documents should not visit a random converter website to get merged.
Can I annotate and save?
Yes. Draw, highlight, comment, fill form fields, and place a drawn signature, then save the result as a standard PDF that any reader opens.
Does the PDF viewer work on the web app?
The web workspace previews PDF attachments in notes. The full PDFX toolbox with its 40+ tools is part of the desktop app.
Can it repair broken PDFs?
There is a repair tool that rebuilds damaged document structures, and a sanitize tool that strips hidden data before you share a file. They handle the common cases; severely corrupted files may still resist.
Your notes deserve a better engine.
A Notion-style block editor on the engine behind the world's most popular code editor. Notes stay files you own, extensions add what you need, and AI plugs in natively. Free to start, on web and desktop.
Free to start · Your files, your disk · Windows desktop & web