PdfPig Alternatives

PdfPig reviews and mentions

• Build a Local RAG Chatbot in 30 Minutes with .NET 8, Ollama, and React
  3 projects | dev.to | 22 Jun 2026

  PdfService uses PdfPig — a pure C# PDF library, no native dependencies. The text extraction is the easy part. The interesting part is the chunking.

• ZingPDF VS PdfPig - a user suggested alternative
  2 projects | 18 Jun 2026
• So you want to parse a PDF?
  4 projects | news.ycombinator.com | 3 Aug 2025

  I think it's a useful insight for people working on RAG using LLMs.

  Devs working on RAG have to decide between parsing PDFs or using computer vision or both.

  The author of the blog works on PdfPig, a framework to parse PDFs. It seems to rely on combining computer vision with PDF metadata for its document understanding APIs. https://github.com/UglyToad/PdfPig/wiki/Document-Layout-Anal...

  GP's comment says a pure computer vision approach may be more effective in real-world scenarios, which is an interesting insight since many devs would assume that pure computer vision is probably the less capable but also more complex approach.

  As for comments suggesting relying on the parsing library itself instead of rasterizing, the reason is that detecting high-level visual objects (like tables , headings, and illustrations) and getting their coordinates using vision models is far easier that trying to infer those structures by examining hundreds of PDF line, text, glyph, and other low-level PDF objects. I feel these commentators have never tried raw PDF parsing. Try it once using PdfBox, Fitz, etc. You'll understand the difficulty. PDF really is a terrible format!

• Compare PdfPig vs IronPDF for .NET PDF Projects in C#
  1 project | dev.to | 19 Jun 2025

  Explore PdfPig GitHub if you're interested in PDF internals and raw text extraction

• Building a .NET Console App for Document Search (RAG) with OpenAI Embeddings
  1 project | dev.to | 10 Mar 2025

  PDF files: .NET doesn’t have a built-in PDF reader in the standard libraries, so extracting text from PDFs requires an external library or tool (e.g., PdfPig or iText7). For simplicity, in this tutorial we will assume any PDF is already in text form or skip PDF content extraction. (In a real app, you could use a library like PdfPig to get the text (Chat with your documents using OpenAI embeddings in .NET/C# - crispycode.net) and then split by pages or paragraphs (Chat with your documents using OpenAI embeddings in .NET/C# - crispycode.net).)

• Just Say No
  3 projects | news.ycombinator.com | 30 Nov 2022
• There is framework for everything.
  107 projects | /r/ProgrammerHumor | 4 Aug 2022

  What about PdfPig? It's under Apache 2.0.

• Extract Text from PDF file Blazor
  1 project | /r/csharp | 27 Jun 2022

  You could try PdfPig. https://uglytoad.github.io/PdfPig/ I've used it for some small tasks and found it very useful. If you want to handle scanned pdfs you would need to use OCR instead.

• How to read pdf files in C#?
  2 projects | /r/csharp | 2 Dec 2021

  PDF Pig is open source and allows you to read text and even extract images.

• Add, Remove, Extract and Replace Images in PDF using C#
  2 projects | /r/dotnet | 23 Aug 2021

  https://uglytoad.github.io/PdfPig/ https://github.com/empira/PDFsharp

• A note from our sponsor - ReSharper
  www.jetbrains.com | 11 Jul 2026

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