# Logo Watermark Overlay the second image as a proportional logo. [Open this tool](https://whatson.pk/image-logo-watermark-tool/) Category: Image Preparation A logo overlay should be sized in relation to the base image, not pasted at an arbitrary pixel scale. Upload the base and logo separately, then inspect placement and opacity. ## Inputs and controls * Images in order: JPEG; PNG; WebP. Static images. Up to 4 MiB per file, 12 MiB total and 4 million pixels per image. At most six source images. * Logo image: JPEG; PNG; WebP * Logo width as percentage. Allowed range: 1 to 80 * Logo opacity. Allowed range: 1 to 100 * Logo placement: Bottom right; Bottom left; Top left; Top right; Centre * Download format: PNG, preserves alpha; JPEG, flattens alpha; WebP, server support needed * Quality. Allowed range: 1 to 100 ## How to use * Choose a base image and upload the logo separately. Check that both are the intended source files. * Set Logo width as percentage, Logo opacity, Logo placement, Download format and Quality. Review the selected units and options before preparing the output. * Select Prepare image. Inspect the resulting preview, dimensions and file size, then download the output you need. ## Why use this tool Proportional sizing makes the logo treatment easier to repeat on differently sized pictures. ## Before relying on the result Compare the finished picture with its source. Use a suitable logo with alpha and review the final output format. JPEG flattening does not retain overall transparency. ## Questions ### Can transparent logo edges be preserved? Use a suitable logo with alpha and review the final output format. JPEG flattening does not retain overall transparency. ### What should I check before using Logo Watermark? Prepare a supported source image and check Logo width as percentage, Logo opacity, Logo placement and Download format. Use the exact units shown beside the controls and replace any example values with your own inputs. Source page last modified (UTC): 2026-10-04T18:22:35+00:00 This profile describes the tool. It does not execute it or supply a professional certification.