Guides
9 practical workflows
QR Code Generator
How to Create a QR Code for a Restaurant Menu
Create a restaurant menu QR code, test it, print it clearly, and avoid common mistakes with links, sizes, and table placement.
Barcode Generator
PNG vs SVG for QR Codes and Barcodes
Understand when to use PNG or SVG for QR codes, barcode labels, printing, web pages, and POS testing.
Merge PDF
How to Merge PDF Files Safely
Merge PDF files in the right order, protect private documents, review the result, and avoid common PDF mistakes.
Compress PDF
How to Reduce PDF Size Without Losing Readability
Reduce PDF file size while keeping text, scans, forms, and images readable for email, Telegram, forms, and office workflows.
Khmer Unicode Fixer
How to Fix Broken Khmer Unicode Text
Clean copied Khmer Unicode text, remove hidden characters, normalize spacing, handle digits, and understand legacy-font limitations.
PayBack Calculator
How to Split a Restaurant Bill Fairly
Split restaurant bills fairly with worked examples, service-charge edge cases, and practical payback checks before collecting money.
Expense Tracker
How to Build a Monthly Budget That You Can Follow
Create a realistic monthly budget with categories, weekly review checkpoints, and edge-case handling for irregular spending.
PayBack Calculator
How to Handle KHR and USD Rounding in Group Expenses
Avoid payout confusion in Cambodia by using one settlement currency, clear exchange-rate rules, and fair rounding for KHR/USD group expenses.
Expense Tracker
How to Reimburse Office Petty Cash Without Confusion
Track and reimburse office petty cash with clear approvals, receipt checks, and practical edge-case handling for missing or partial records.