Go to https://jpg2png.com/ in your computer's web browser. This service allows you to convert up to 20 JPG files at once. JPG to PNG allows file sizes of up to 50 megabytes apiece. It's in the middle of the page. Doing so opens a File Explorer (Windows) or Finder (Mac) window. Go to the location of the photo you want to convert, then click once the photo. If you want to select more than one photo, hold down Ctrl (Windows) or ⌘ Command (Mac) while clicking each file you want to upload. This option is in the bottom-right corner of the window. Your files will be uploaded to the conversion site. Once you see "DOWNLOAD" listed below every photo you uploaded, you can proceed. It's a grey button at the bottom of the page. Doing so will prompt your PNG file(s) to download onto your computer in a ZIP folder. It may take a few minutes for this button to become available if you uploaded the full 20 photos allowed by the converter. Since your PNG files will download in a ZIP folder, you'll need to extract them from the ZIP folder into a normal folder before you can view them at full quality:   Windows — Double-click the downloaded ZIP folder, click Extract at the top of the window, click Extract all in the resulting toolbar, and click Extract when prompted.  Mac — Double-click the downloaded ZIP folder, then wait for the files to finish extracting.
जेपीजी से पीएनजी कन्वर्टर को खोलिए: क्लिक करिए UPLOAD FILES: अपनी फ़ोटो चुन लीजिये: क्लिक करिए Open: अपनी फ़ाइलों के पूरी तरह कन्वर्ट होने तक इंतज़ार करिए: क्लिक करिए DOWNLOAD ALL: अपनी फ़ोटोज़ को एक्सट्रैक्ट (Extract) करिए: