ComPDFKit

What it does

ComPDFKit provides PDF Annotations, Format Conversion, Digital Signature, Smart Forms, OCR, redaction, and more capabilities. Our powerful and steady API tools allow developers to bring the functions they want to multi-platform softwares easily.

Embed enterprise-grade PDF editing, conversion, annotation, and automation into Web, Server, Desktop or Mobile with secure, high-performance processing.

• PA
  PDF API – Generate, convert, and modify PDF documents2022 · ▲204

  Hi HN, Arek here. We’re super excited to officially launch PSPDFKit API [1]. PSPDFKit API is a collection of HTTP APIs that enable you to convert, generate, and edit documents without running any service on your infrastructure. What differentiates our API from others is that you can chain together multiple “actions” as part of a single API request. For example, you can convert, OCR, watermark, edit, and flatten a document — all in one call. Available actions [2]: - PDF Generator - PDF Converter - Image Converter - OCR - Watermark - Merge - Split - Duplicate - Delete - Flatten Our…

• 
  PSPDFKit2019 · nutrient.io · ▲12

  A Complete PDF Solution You Can Rely On

• 
  AvePDF2023 · ▲95

  Free Online PDF and Document Tools

• 
  GetPDFKitApr 2026 · getpdfkit.com

  42 free PDF tools — compress, merge, convert & sign

• 
  InstaPDFKitJun 2026 · instapdfkit.com · ▲4

  100% client-side PDF tools for fast, private file editing

• 
  Safe PDF KitNov 2025 · safepdfkit.com · ▲6

  Safest way to process your pdfs

• 
  /dev/null▲486

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• 
  Locofy.ai▲720

  Hey there, I am Honey - Co-founder at Locofy. We, along with other makers, have been building Locofy.ai to help massively accelerate the builders - the designers, developers, product managers & founders, and we're excited to share it today with the HN Community. Locofy.ai simply converts designs into production-ready frontend code for web and mobile apps. It adapts to your preferred design tools, tech stack, and workflows with ease and lets you launch upto 4x faster, while letting designers design the way they want and giving high-quality responsive code that developers love. With this…

  Dev tools · 2022 · locofy.ai

• PO
  Porting OpenBSD Pledge() to Linux▲571

  Life & fun · 2022 · justine.lol

• 
  PocketBase – Open Source realtime backend in one file▲563

  Open Source realtime backend in 1 file. Contribute to pocketbase/pocketbase development by creating an account on GitHub.

  Dev tools · 2022 · github.com

• 
  ruttl▲552

  Visual & Design Feedback Tool that helps you review design, content and report bugs on websites, applications, PDFs and images.

  Dev tools · 2022 · ruttl.com

• 
  Pipes puzzle (a.k.a. Net) on a hexagonal grid▲537

  Hello, HN - I wanted to share this puzzle game I made during my vacation. I'm rather fond of the pipes puzzle where your goal is to restore a scrambled network of connections by rotating tiles. It's usually played on a grid of squares and this all started when I decided to make a programmatic solver for that kind of puzzle. Then I realized that with some minor changes the solver could generate new puzzle instances. I thought about what kind of puzzle to make and someone suggested a hexagonal grid. Adapting the generator wasn't too hard but then I had to create a way to play this variant. So…

  Life & fun · 2022 · hexapipes.vercel.app

• 
  Parsnip – Duolingo for Cooking▲536

  We're building Parsnip to create a "tech tree" of cooking skills that allows anyone to level up on the building blocks of cooking knowledge while tracking their progress over time. It took us a few iterations to figure out the right product; here's the story of our latest pivot: [https://parsnip.substack.com/p/a-new-hope] The goal is to create a personalized way to learn any recipe on the Internet, then use this as a springboard to help home cooks of all levels solve the problem of repeated meal planning in a 10x better way:…

  Work · 2022 · parsnip.ai