PaperTrack

What it does

PaperTrack is a secure document-sharing and virtual data room platform for teams who send sensitive documents. Instead of sending a file and hoping for the best, PaperTrack gives you page-by-page analytics on who opened your document, which pages they spent time on, and when they're viewing it live. Every link can be protected with a password, expiration date, dynamic watermarking, and NDA-gated access. PaperTrack also offers full data rooms with folder-level permissions and audit logs.

Know exactly who reads your pitch decks, proposals, and data rooms. Track views with page heatmaps, watermarks, NDA gates, and granular access controls.

PaperTrack brings page-by-page analytics, dynamic watermarking, NDA gates, and virtual data rooms to your pitch decks, proposals, and confidential files. PaperTrack is a secure document sharing platform that provides page-by-page reading dwell time analytics, dynamic recipient watermarking, click-through NDA gates, virtual data rooms, and granular access controls. Senders track exactly who opens shared documents, which pages attract the most attention, and prevent unauthorized distribution without compromising security. Power every step from first share to final signature, without losing visibility. Know when a document is opened, which pages get attention, and who is ready for the next…from papertrack.io

• 
  PaperSync2024 · ▲141

  The e-paper display that shows your appointments and tasks

• 
  OnTrack2020 · ▲72

  Smart productivity tool that blocks unrelated sites

• 
  Papermark2015 · ▲103

  A better way to track what you’re reading

• 
  LeaksID2021 · ▲318

  Enrich private docs with dynamic invisible anti-leak marks

• 
  DocSend2014 · ▲198

  Rich analytics and controls on documents you send.

• 
  Greater Paper2024 · ▲128

  Edit docs real-time with top-notch security

• 
  AstraPixels▲267

  ​​A pixel-art solar system at its real current positions.​

  Growth · 29d ago · astrapixels.com

• 
  WorldMap.lol▲197

  Put your startup on the map. Literally.

  Growth · 13d ago · worldmap.lol

• TL
  The load-bearing vocabulary of Claude▲703

  Life & fun · 10d ago · louisabraham.github.io

• 
  Hey Noah▲641

  A proactive AI executive assistant for founders

  AI · Aug 2026 · heynoah.io

• 
  Clipto MCP▲640

  Let agents source clips from terabytes of your local video

  Work · 18d ago · clipto.com

• SA
  Simple algorithm and color space to generate diverse skin tones▲627

  Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…

  Life & fun · Aug 2026 · toneyalexander.github.io

• 
  AdAnt AI▲608

  Claude for viral, high-converting social ads

  AI · Aug 2026

• 
  I trained a 125M model to autocomplete piano on-device▲598

  I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.

  AI · 16d ago · simedw.com