Practical guides

Understand the task.

Short, useful explanations for price calculations, scannable codes and clean PDF documents.

How to calculate price per gram

Start with a known package price and its weight. Divide the price by the number of grams:

Price per gram = package price ÷ package weight in grams

For example, if 500 grams costs 120, the price per gram is 120 ÷ 500 = 0.24. A 300-gram quantity would cost 300 × 0.24 = 72.

When calculating weight from a budget

Divide the amount you want to spend by the price per gram. If the unit price is 0.24 and your budget is 60, the available weight is 60 ÷ 0.24 = 250 grams.

Weight Price Calculator keeps both directions together when you need the answer quickly.

How to create a useful QR code

Decide what should happen after someone scans the code. A contact code should contain accurate contact fields; a phone code should use the complete number; a social or web code should point directly to the intended destination.

  1. Choose the correct information type.
  2. Check spelling, numbers and links before generating.
  3. Keep strong contrast between the code and its background.
  4. Leave clear space around every side of the code.
  5. Test from another device before printing or sharing.

Use QR Code Generator Pro to create common code types from Android.

How to prepare images for a clean PDF

A readable PDF begins before conversion. Place documents on a flat surface, use even light and keep the camera parallel to the page. Avoid shadows across text and check that every edge is visible.

Before creating the PDF

  • Remove blurred or duplicate images.
  • Rotate pages into the correct reading direction.
  • Arrange pages in the final reading order.
  • Check that small text remains readable.

For multi-file work, give the final PDF a recognizable name and confirm the page order before sharing. Radiant Image To PDF supports scanning, image conversion, merging and sharing.