PDFCanon

What it does

PDFs are structurally chaotic - same document, different bytes, hidden JS, broken audit trails. PDFCanon normalizes any PDF deterministically: strips active content, collapses structural noise, and returns a hardened document with a stable SHA-256 hash. Same input → same bytes → same hash. Every time. Free tier: 100/month. SDKs forNET, Node, Python, Java, Go.

• 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…

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  pdfyrJun 2026 · pdfyr.com · ▲3

  Privacy-first PDF tools with a REST API

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  pdfslashJul 2026 · pdfslash.com · ▲6

  Edit PDF in your browser- your files never leave your device

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  UtiliomeAug 2026 · utiliome.com · ▲6

  Edit PDFs, images, and code—without uploading your files.

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  ThePDFNinjaJun 2026 · thepdfninja.com · ▲4

  100% free PDF converter & editor. No sign-up required.

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  PDFCraft26d ago · pdfcraftapp.com · ▲1

  Privacy-first PDF tools to merge, edit & convert files

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  Dograh▲592

  The open source VAPI alternative

  Dev tools · 25d ago · dograh.com

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  Meridian▲530

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  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 11d ago · x1.new

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  Computable GPU Index (CGI)▲424

  The first open-source price index for GPU compute

  Dev tools · 10d ago · getcomputable.com

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  Open-Source eInk Bike Computer▲403

  OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

  Dev tools · 2d ago · opentrailpaper.com

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  The GTM Co-Founder▲402

  Open-source GTM skills for technical founders

  Dev tools · 29d ago · gtmcofounder.com

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  Brew ▲905

  Like Claude design for email marketing

  AI · May 2026 · brew.new

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  Kilo Code for VS Code▲897

  Parallel agents, diff reviewer, and multi-model comparisons

  Dev tools · May 2026 · kilo.ai

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  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

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  PollyReach▲796

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

• NW
  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

• FM
  Files.md – Open-source alternative to Obsidian▲730

  Dev tools · May 2026 · github.com