Updated daily
Image Guides
Simple explanations for photo size, signature formatting, image compression and common upload errors.
How to Compress an Image to 20KB Without Making It Blurry
Choose the right dimensions, format and target-size settings for a readable result.
How to Add a Watermark to Multiple Images
Apply consistent text or logo branding to a complete batch and download one ZIP.
How to Crop an Image to Exact Dimensions
Match the required aspect ratio and pixels without stretching the subject.
Image Size vs Image Dimensions
Understand KB, MB, pixels, megapixels and which value an upload form is checking.
Why Is My Photo Upload Being Rejected?
Check file size, dimensions, format, filename, orientation and browser problems.
How to Reduce Image Size Without Changing Dimensions
Lower KB or MB while keeping the same pixel width and height.
How to Resize an Image Without Stretching It
Keep the aspect ratio correct and know when cropping is required.
JPG vs PNG vs WebP
Choose the right format for photos, transparency and upload limits.
How to Prepare a Signature for an Online Form
Create a clear crop, resize it and meet the required KB range.
A new practical guide will be added regularly. Requirements can change, so always verify the current instructions on the form you are completing.