How to Add an Image Watermark to a PDF in Java
Add a transparent logo watermark to every PDF page in Java with complete iText 7 and Apache PDFBox examples, placement rules, rotation fixes, and troubleshooting.
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Guides for capturing the web
How to take clean screenshots, turn HTML into images and PDFs, run headless browsers, and give AI agents eyes. Written by the team that builds ScreenshotNeo.
6 Online Port Scanners for Finding Open Ports
Compare six online port scanners, understand open versus filtered results, and troubleshoot port forwarding safely from an external network.
Node.js Screenshot API: Capture Any Website in Code
Build a reliable Node.js website screenshot API with Puppeteer or Playwright, then compare hosted capture when you need clean, scalable results.
11 Best Cloud-Based Dashboards for Managing Servers and Websites
Compare 11 server dashboards by control, provider support, deployment workflows, operations, and total cost. Learn what to verify before choosing.
How to Build a Question-Answering System from a PDF
Build a grounded PDF question-answering system with parsing, chunking, embeddings, retrieval, citations, evaluation, and production troubleshooting.
9 Python Web Servers to Try for Your Next Project
Compare nine Python web servers by WSGI, ASGI, WebSockets, HTTP/2, Windows support, deployment model, and operational trade-offs.
6 Best Datacenter Proxy Providers for Web Scraping in 2026
Compare six datacenter proxy providers by pool size, targeting, rotation, protocols, performance claims, pricing model and free plans.
How to Click Cookie Popups and Modal Alerts in Selenium
Tell browser alerts from page modals, then use Selenium waits and the right interaction to accept, dismiss, or handle cookie banners reliably.
How to Add Custom Headers or Footers to PDFs in Go
Add repeating headers, footers, and page numbers to PDFs in Go with go-pdf/fpdf callbacks, deliberate margins, and a complete runnable example.
9 Developer-Friendly Hosting Platforms for Deploying SaaS Applications
Compare SaaS hosting workflows, runtimes, previews, databases, regions, scaling, and costs so you can choose a platform that fits your application.
How to Take Website Screenshots in Activepieces
Use Activepieces’ Browserless piece to capture website screenshots in a no-code flow, troubleshoot common issues, and compare an API-based shortcut.
6 Best Residential Proxy Providers for Web Scraping in 2026
Compare six residential proxy providers by pool size, targeting, price, trials, tooling, reliability and compliance for web scraping in 2026.
7 Online CCNA Certification Courses for Network Administrators
Compare seven online CCNA courses by exam alignment, labs, pacing, support, assessments, and cost so you can choose the right path.
How to Scrape Airbnb Prices With Python: Public Listing Data by Date
Build a date-keyed Airbnb price table in Python using permitted public datasets, with nightly-price semantics, validation, and practical troubleshooting.
How to Add a Watermark to a Screenshot with Node.js
Add text or image watermarks to screenshots in Node.js with Sharp, precise positioning, transparent SVGs, output formats, troubleshooting, and automation tips.
5 Ways to Make an HTTP Request in JavaScript
Compare five ways to make HTTP requests in JavaScript, with runnable examples, error handling, CORS guidance, and help choosing the right API.
How Brave Browser’s Ad and Tracker Blocking Affects Website Screenshots
Brave Shields can remove third-party ad content, leave empty ad slots, or shift page layout. Learn how to diagnose and compare the differences.
6 Notepad++ Plugins for Coders and How to Install Them
Add command running, editor automation, JSON tools, file comparison, remote access, and code navigation to Notepad++. Here’s how to install and verify six practical plugins.