PDF as Images vs Text: What Should You Feed an LLM?
GPT-4o and Claude can read PDF pages as images, so do you still need to extract text? An honest look at token cost, accuracy, RAG fit, and when each wins.
July 27, 2026 · 4 min read
PackForAI Blog
Guides for AI-ready documents
Cleaning PDFs, saving tokens, and getting better answers from ChatGPT and Claude.
PackForAI vs MarkItDown vs LlamaParse: PDF to Markdown for LLMs
PackForAI, MarkItDown and LlamaParse all turn PDFs into Markdown for LLMs, but they fit different jobs. An honest comparison of setup, OCR, tables and cost.
July 22, 2026 · 3 min read
Markdown vs JSON for LLM Context: Which Format Saves Tokens
Markdown or JSON when feeding documents to an LLM? Markdown costs fewer tokens and reads better for prose, JSON wins for strict data. Here's how to choose.
July 21, 2026 · 5 min read
How to Use Your PDFs Directly Inside Claude and Cursor (MCP Setup)
Stop copy-pasting broken PDF text into Claude. Connect an MCP server so Claude and Cursor convert documents to clean Markdown on demand. Full setup guide.
July 17, 2026 · 6 min read
LlamaParse Alternative: A Simpler, No-Setup Way to Turn Documents Into Markdown
Looking for a LlamaParse alternative? If you want document-to-Markdown without adopting a framework, here is how PackForAI compares and who each one fits.
July 4, 2026 · 5 min read
How to Extract Clean Tables From PDFs for LLMs
Tables are where PDF extraction fails hardest, and where LLMs give wrong numbers. Here is why, and how to get tables out of a PDF as clean Markdown an AI can read.
July 4, 2026 · 6 min read
OCR for Scanned PDFs and ChatGPT: Getting Text Out of Image-Only PDFs
If your PDF is scanned, ChatGPT sees nothing. Here is why image-only PDFs come back empty, and how OCR turns them into text an AI can actually use.
July 4, 2026 · 5 min read
How Many Tokens Is a PDF? (And How to Shrink It)
How many tokens does a PDF use in ChatGPT or Claude? It depends on the content and how cleanly it is extracted. Here is how to estimate it and cut it down.
July 4, 2026 · 5 min read
Best PDF Parser for RAG in 2026: How to Choose
The best PDF parser for RAG depends on your setup. Here is an honest look at the main options, open-source and hosted, and how to pick for your pipeline.
July 4, 2026 · 7 min read
How to Cut Your LLM API Bill When Feeding It Documents
LLM costs scale with tokens, and documents are full of tokens you are paying for but the model ignores. Here is how to find and cut that waste.
July 3, 2026 · 6 min read
RAG Preprocessing: Why Clean Markdown Beats Raw PDF Chunks
In RAG, retrieval quality is capped by what you embedded. Raw PDF chunks quietly wreck it. Here is why clean Markdown is a better substrate and how to preprocess.
July 2, 2026 · 6 min read
Convert Word, PowerPoint and Excel to Markdown for AI
PDFs get the attention, but most real documents are Word, PowerPoint and Excel, and each breaks differently when you hand it to an AI. Here is how to convert them right.
July 1, 2026 · 6 min read
PackForAI vs Open-Source PDF Parsers (Docling, Marker): Which to Use
Docling and Marker are great free, self-hosted document parsers. Here's an honest look at when to run them yourself and when a hosted tool like PackForAI is the better call.
June 30, 2026 · 6 min read
How to Feed a Spreadsheet to ChatGPT or Claude Without Garbled Numbers
Excel and CSV data confuses AI when dates, merged cells, and totals get mangled. Here's how to turn a spreadsheet into context ChatGPT and Claude can actually reason over.
June 29, 2026 · 5 min read
How to Prepare PDFs for ChatGPT and Claude (and Save Tokens)
A practical guide to cleaning PDFs before you paste them into ChatGPT or Claude — remove noise, keep structure, and cut wasted tokens.
June 28, 2026 · 5 min read
Why AI Gives Bad Answers From Your PDFs (and How to Fix It)
If ChatGPT or Claude keeps misreading your PDF, the problem is usually the document's text layer — not the model. Here is how to diagnose and fix it.
June 28, 2026 · 4 min read
PDF to Markdown for AI: A Practical Guide
Why Markdown is the right format for feeding documents to AI, and how to convert PDF, DOCX, PPTX, and XLSX into clean, AI-ready Markdown.
June 28, 2026 · 5 min read