Choosing the wrong format can lead to blurry text, huge file sizes, or ugly black backgrounds.

You should convert to PNG if:

1. You need a transparent background.
2. The image contains text or sharp lines that look "fuzzy" in JPG.
3. You plan to edit the image multiple times (PNG is lossless).

You should convert to JPG if:

1. The file size is too large for web or email.
2. You don't need transparency.
3. You are sharing high-resolution photographs.

Creating a PDF from your images is the best way to combine multiple photos into a single, scrollable document. This is common for portfolios, identification documents, and project submissions.