okraPDF Blog
PDF extraction notes for developers
Practical writing on PDF to JSON, OCR, table extraction, schemas, and RAG pipelines. No generic content farm posts.
Extract Tables from PDF in Python: pdfplumber, Camelot & Tabula
A code-first guide to extracting tables from PDFs in Python — the open-source libraries that work, exactly where they break, and when to use an API.
How to Redact a PDF (So the Text Is Actually Gone)
Most PDF redaction leaves the original text recoverable. Here's how real redaction works, how to do it, and how to verify the words are truly removed.
Handwriting OCR benchmark: okraPDF reads IAM at 1.29% CER
okraPDF, Gemini 3, TrOCR, and Tesseract on the IAM handwriting benchmark, same lines and same scoring. Character error rates, methodology, and what they mean.
Generate PDFs in Code with okra exec (Codemode)
okra exec runs sandboxed JavaScript that composes okra's render engines — designed templates, ReportLab, HTML to PDF, and merge — and returns one PDF.
Convert a bank statement PDF to CSV (3 ways)
Three ways to turn a PDF bank statement into CSV — drag-drop tool, copy-by-hand, or a paid bookkeeping subscription. Step-by-step, ranked by speed and accuracy.
Stop writing regex for PDF extraction
Regex works until the PDF changes. Use schemas, source evidence, and validation when invoices, bank statements, or contracts become JSON.
How to create a link to a PDF (in 5 seconds)
Three ways to turn a PDF into a shareable link: Google Drive, Dropbox, or okrapdf.com/host. Step-by-step, ranked by speed and embed behavior.
Extract invoice data from Gmail PDFs to Google Sheets with n8n
Build an n8n workflow that turns Gmail invoice PDFs into structured Google Sheets rows with okraPDF: upload, parse with a JSON schema, poll, append.
Working with a PDF with PHP: A Modern API Guide
Ditch legacy libraries. Learn how to handle any PDF with PHP using a modern REST API. Our guide covers hosting, extraction, conversion, and security.
OCR for Scanned Documents: Build a Production Pipeline
Build a production-grade OCR pipeline. This guide on ocr for scanned documents covers preprocessing, text extraction, PII redaction, and scaling with code
GDP.pdf: why the hardest PDF benchmark isn't really about PDFs
Surge AI's GDP.pdf holds every frontier model under 30%. What makes it hard: all-or-nothing rubrics, pre-encoded traps, and pixel-bound facts.
How to Convert PDF to TXT: 4 Developer Methods
Learn how to convert PDF to TXT using command-line tools, Python, or a scalable API. Covers native text extraction, OCR for scans, and batch processing.
How to Send Pdf: Secure Methods & APIs in 2026
Learn how to send pdf using email, secure links, and programmatic APIs. This 2026 guide covers quick shares to developer-focused delivery.
How to Cite a PDF Correctly in APA, MLA, and Chicago
Learn how to cite a PDF in any format (APA, MLA, Chicago). This guide covers journal articles, reports, and how to handle missing author or date information.
Mail Merge PDF: A Developer's Guide to Automation
A step-by-step developer guide to mail merge PDF generation. Learn to fill forms, use templates, and convert HTML to PDF at scale with API examples.
PDF to Word Document a Practical Guide for 2026
Convert any PDF to Word document with our guide. Explore consumer tools, advanced OCR methods, and programmatic conversion using OkraPDF's API for developers.
Add Watermark to PDF
Learn to add watermark to pdf with text or image using GUI tools, CLI, Python, Node.js, & APIs. A step-by-step developer guide with best practices.
How to Upload a File with HTML: A 2026 Developer's Guide
Learn how to upload file with html, from basic forms to modern JavaScript APIs. This 2026 guide covers drag-and-drop, progress bars, and server-side handling.
How to Remove Digital Signature from PDF: Your Guide 2026
Learn how to remove digital signature from pdf safely & efficiently in 2026. Explore GUI tools, code, signature types, and critical legal/security risks.
Accessible PDFs: convert to HTML, or remediate in place?
Convert a PDF to accessible HTML, or tag the PDF in place? Who argues each side, what the evidence says, and a sourced way to decide per document.
Financial Data Extraction: A Practical Guide for Developers
Learn how financial data extraction turns PDFs like bank statements and 10-Ks into structured JSON. This guide covers APIs, pitfalls, and developer workflows.
PDF accessibility checker: how to use a risk report
Use a PDF accessibility checker to triage risk: what to fix first, what needs human review, and what not to claim yet.
Convert PDF to Link: Share Documents Easily
Discover fast methods to convert your pdf to link for easy sharing. Explore simple user flows and a powerful API for secure, permissioned, and embeddable PDF
Email Compressed Files: A Guide to Avoiding Bounces
Learn how to email compressed files like ZIPs. We cover why they get blocked, how to secure them, and why hosting PDFs with a link is often a better fix.
Build a Robust URL File Downloader: A Practical Guide
Learn to build a robust URL file downloader with Node.js and Python. This guide covers streaming, chunking, retries, security, and integrating with OkraPDF.
Document Processing Platform: A Developer's Guide for 2026
A developer's guide to the modern document processing platform. Learn core capabilities, API workflows, architecture patterns, and key evaluation criteria.
How to add a custom okraPDF connector in Claude Desktop
Connect okraPDF's MCP server to Claude Desktop in under a minute. Paste one URL, sign in, and start using PDF tools with no API key.
Document Parsing for AI Agents: ParseBench, dots.mocr, and the New OCR Stack
ParseBench and dots.mocr show why document parsing for AI agents needs tables, charts, layout grounding, schemas, verification, and page evidence.
PDF to Excel Converter Tool: Reliable API for 2026
Build a powerful PDF to Excel converter tool with OkraPDF API. Extract tables from messy PDFs, handle multi-page data, & export to XLSX/CSV quickly. Get
PDF to JSON a Developer Guide for Structured Data
A developer's guide to converting PDF to JSON. Learn to upload, extract tables and text, map schemas, validate data, and handle PII with code examples.
Extract PDF Pages: A Guide for Developers (API & CLI)
Learn to extract PDF pages programmatically using REST APIs (Node.js, Python) or command-line tools. A developer's guide to splitting PDFs at scale.
Convert PDF to CSV: Ultimate Developer Guide 2026
Learn to convert PDF to CSV using UI tools, CLI, libraries (Tabula/Camelot), & APIs. Get clean data extraction with this developer's guide for 2026.
How to Download a PDF: The 2026 Developer's Guide
Learn how to download a PDF using any method, from browser basics to programmatic scripts (cURL, Python, Node) and secure API workflows for your app.
Audit & Compliance Software: A Developer's Guide for 2026
A developer's guide to audit & compliance software. Learn core capabilities, architecture patterns for SOC 2 & HIPAA, and how to implement auditable workflows.
Extract Data from PDF: Developer Methods & Tools
Learn to extract data from PDF files with developer-focused methods. This guide covers text, tables, JSON, code examples, OCR, PII redaction, and API workflows.
Embed PDF on HTML: A Comprehensive Guide 2026
Discover how to embed pdf on html effectively. Use native tags, JavaScript libraries like PDF.js, & dedicated viewers for responsive & secure content.
How to Redact Documents Securely: A Developer's Guide
Learn how to redact documents the right way. Our guide covers PII identification, permanent data removal, metadata scrubbing, and API-based PDF redaction.
Best PDF to Markdown Converter Tools in 2026
Discover the best pdf to markdown converter methods for developers. Explore APIs like OkraPDF, CLI tools like Pandoc, and advanced document handling.
How to send Discord notifications for PDF processing
Use Discord webhooks, Zapier, Make, n8n, or a small adapter to post okraPDF ready and failed events into a channel.
How to build Gmail PDF email intake with an API
Watch Gmail for PDF attachments, send them to okraPDF, and route extracted rows into Sheets, Slack, Airtable, or your app.
How to watch a Google Drive folder for new PDFs
Use Google Drive API change notifications, Zapier, Make, or n8n to upload new Drive PDFs into okraPDF for extraction.
How to automate PDF extraction with Make webhooks
Build a Make scenario that sends PDFs to okraPDF, receives lifecycle events, and routes extracted rows to the right app.
How to send Microsoft Teams notifications for PDF processing
Post PDF ready and failed events into Microsoft Teams with Workflows webhooks, Microsoft Graph, Zapier, Make, n8n, or an adapter.
How to automate PDF workflows with n8n webhooks
Use n8n Webhook and HTTP Request nodes to upload PDFs to okraPDF, register lifecycle webhooks, and route ready or failed events.
How to append PDF rows to Google Sheets with the API
Use the Google Sheets API, Zapier, Make, or n8n to append extracted PDF rows into the spreadsheet your team already uses.
How to send Slack alerts for finished PDF processing
Post PDF ready and failed notifications into Slack using okraPDF events, incoming webhooks, Zapier, Make, n8n, or a small adapter.
How to trigger Zapier when PDF processing finishes
Use okraPDF lifecycle webhooks, REST Hooks, or Webhooks by Zapier to start Zaps when hosted PDFs are ready or failed, without polling.
Best PDF Password Remover for 2026: Online & API Guide
Unlock documents easily with our 2026 PDF password remover guide. Explore secure online tools, CLI methods, and programmatic API workflows for developers.
BMP File to PDF: A Developer's Guide to Conversion
Learn how to convert a BMP file to PDF using built-in tools, command-line utilities like ImageMagick, and code. Includes batch conversion and API hosting.
How to Google Docs Embed PDF Documents Easily
Learn a quick workaround to google docs embed pdf files. We cover simple sharing links and methods for inserting high-fidelity page renders into your docs.
Use okraPDF with Claude Cowork and Claude Skills
A tested workflow for giving Claude Code or Cowork a PDF extraction skill backed by okraPDF's files, parse, and jobs API.
How to Edit a Secured PDF: 4 Developer Methods
Learn how to edit a secured PDF using passwords, command-line tools like qpdf, Python libraries, and developer APIs. Practical steps for technical users.
How to Extract Data from PDF Python: 2026 Guide
Learn how to extract data from pdf python to capture text and tables. Use libraries like pdfplumber and Camelot for high-accuracy data extraction in 2026.
Handwritten Text Recognition: A Developer's Guide
A developer's guide to handwritten text recognition (HTR). Learn about models like CRNN+CTC, evaluation metrics, production trade-offs, and PDF integration.
Fax to PDF: A Developer's Guide for 2026
Learn how to convert fax to PDF, from simple online tools to building a robust API workflow for OCR, data extraction, and PII redaction. For developers.
PDF to HTML: what 'HTML' should mean from a PDF API
Beyond raster screenshots: the four PDF-to-HTML artifacts okraPDF ships — hosted, reader, embeddable, configurable. With curl recipes.
OpenGraph links for PDF citations
How to turn page, target, and bbox evidence into shareable citation links with hover previews, GIF unfurls, and exact source pixels.
How to auto-host Google Drive PDFs with okraPDF and Zapier
Build a Zap that watches a Drive folder, uploads each PDF to okraPDF, and writes back a stable hosted PDF URL.
How to extract invoice data into Airtable with okraPDF and Zapier
Create a no-code invoice workflow: Gmail or Drive sends PDFs to okraPDF, then Zapier writes extracted fields into Airtable.
How to notify Slack when PDFs are ready with okraPDF and Zapier
Use okraPDF lifecycle events and Zapier to post Slack alerts when uploaded PDFs are hosted, processed, or failed.
Bank statement to CSV converters in 2026 — pricing roundup (7 tools)
Seven bank-statement-to-CSV tools with verified pricing (2026-05-04). No rankings, just public pricing pages and what each vendor positions itself for.
PDF to CSV converter roundup 2026 — pricing & benchmarks (7 tools)
Seven PDF-to-CSV tools with verified pricing (2026-05-04) and public ParseBench benchmarks where available. No editorial picks — vendor-cited only.