Articles, Guides & Walkthroughs
Practical walkthroughs, deep dives, and performance tips for developer utilities, file processing, and smart workflows.
How to Split a PDF into Files by Page or Range
Split a PDF into separate files, divide it by page ranges, or extract selected pages into one new document—and check the output order.
Latest Publications
72 Total ArticlesHow to Unlock a PDF When You Know Its Password
Remove PDF encryption for a file you own or are authorized to modify, using the correct password and checking the unlocked copy afterward.
How to OCR a Scanned PDF and Make Its Text Searchable
Understand OCR, extract text from scanned PDF pages, review recognition errors, and create a searchable PDF when the scan needs a text layer.
UUID Versions Explained: Choose Between v1, v4, v5, ULID, and NanoID
Compare common identifier formats by how they are generated, when they are useful, and why an identifier is not a password or encryption key.
How to Convert Units and Check the Result
Convert length, weight, temperature, volume, speed, data, time, and area units, and check the source unit and rounding before using a result.
How to Use Text to Speech in Your Browser
Turn written text into spoken audio, choose an available browser voice, and adjust playback settings while checking pronunciation and pacing.
Lorem Ipsum for Wireframes: Choose the Right Placeholder Text
Use placeholder text deliberately in mockups and prototypes, choose a realistic length, and replace it before publishing or testing real content.
Website Launch Checklist: robots.txt and Social Preview Cards
Check crawl rules and link previews before publishing a site: review robots.txt, Open Graph tags, and X card metadata with focused tools.
How to Check a Domain’s Age and Read Its WHOIS Record
Check a domain’s registration dates and understand which WHOIS fields may be public, redacted, or unavailable for a particular domain extension.