Are JPG and JPEG the same?

Yes. They are the same format with two spellings of the extension. Renaming between .jpg and .jpeg does not change the file.

Can I upload a PNG instead of a JPG?

Only if the notice lists PNG. Most exam and recruitment portals accept only JPG/JPEG for photos.

How do I convert a WebP image to JPG?

Open it in an image converter that saves real JPG files, such as this site's WebP to JPG converter, and download the result.

Can I just rename a PNG file to JPG?

No. Renaming changes only the extension, not the data inside. Convert the image properly so the portal reads it correctly.

Which image format gives the smallest file size?

For photos, HEIC and WebP are usually smallest, then JPEG, while PNG is largest. For forms, JPEG is the practical choice because it is accepted almost everywhere.

JPG, PNG, WebP and HEIC: which format should you upload?

Updated 11 October 2026

Image converter: JPG, PNG, WEBP and HEIC →

Upload boxes on application forms usually say something like "only JPG/JPEG allowed". If your phone saves photos as HEIC, or your screenshot is a PNG, the form may simply refuse the file. Here is what each format is, where it is used and how to get the right one.

The four formats at a glance

Format	Extensions	Compression	Good for	Accepted by most forms?
JPEG	.jpg, .jpeg	Lossy	Photos	Yes, the default
PNG	.png	Lossless	Screenshots, graphics, text, transparency	Sometimes, more often for signatures
WebP	.webp	Lossy or lossless	Websites	Rarely
HEIC / HEIF	.heic, .heif	Lossy	iPhone and some Android camera photos	Rarely

JPEG (JPG)

JPEG is the standard format for photographs and by far the most widely accepted on Indian exam, recruitment and government portals. It uses lossy compression: it throws away detail your eye is unlikely to notice, which makes files small. You can choose a quality level, trading file size against sharpness. See lossy vs lossless for how this works.

.jpg and .jpeg are the same format. The shorter .jpg exists because old versions of Windows allowed only three-letter extensions. Occasionally a portal's checker accepts one spelling but not the other; renaming the file from photo.jpeg to photo.jpg (or the reverse) usually fixes that, since the content is identical.

PNG

PNG is lossless: every pixel is stored exactly. That is ideal for screenshots, logos and text, and it supports transparent backgrounds. For photos, PNG files are typically several times larger than a JPEG of the same image, so they rarely fit a small KB limit. Some forms accept PNG for signatures, where the plain background compresses well, but many do not. Upload PNG only if your notice lists it.

WebP

WebP is a modern format from Google, widely used on websites because it produces smaller files than JPEG at similar quality. Images saved from web pages or WhatsApp Web sometimes arrive as .webp. Few application portals accept it, so convert it to JPG before uploading.

HEIC (HEIF)

HEIC is the default photo format on iPhones (with the "High Efficiency" camera setting) and on some Android phones. It produces roughly half the size of an equivalent JPEG, but Windows and many web forms cannot read it without extra support. If your file ends in .heic, convert it with our HEIC to JPG converter, which works in any browser, or change your camera setting. Our HEIC to JPG guide covers the iPhone steps.

Worked example: the same photo in four formats

A typical 413 × 531 px passport-style photo on a plain background, saved by an image editor. Figures are illustrative; real numbers depend on the image and the encoder.

Format and setting	Typical size
PNG (lossless)	250 to 400 KB
JPEG, quality 90	50 to 80 KB
JPEG, quality 75	30 to 45 KB
WebP, quality 75	20 to 35 KB
HEIC, default	20 to 35 KB

For a form with a 50 KB limit that accepts only JPG, the JPEG at quality 75 is the right choice.

How to convert

Many files at once: the image converter turns up to 50 photos into JPG, PNG or WEBP in one go, including iPhone HEIC, with an optional size and KB limit.
One photo for a form: open it in our image compressor or image resizer; the output is saved as JPG by default and you can set the KB target at the same time.
Images to PDF: if a form wants a document as PDF, use JPG to PDF.
PDF to image: if you have a PDF certificate but the form wants a JPG, use PDF to JPG.

Do not just rename a .png or .heic file to .jpg. Renaming changes only the label, not the content, and a strict portal will detect the mismatch or show a broken image.

Quick rule

Photos, thumb impressions and most signatures: JPG. Documents and certificates: PDF unless told otherwise. Anything else: only if the notice lists it.

Questions people ask

Are JPG and JPEG the same?: Yes. They are the same format with two spellings of the extension. Renaming between .jpg and .jpeg does not change the file.
Can I upload a PNG instead of a JPG?: Only if the notice lists PNG. Most exam and recruitment portals accept only JPG/JPEG for photos.
How do I convert a WebP image to JPG?: Open it in an image converter that saves real JPG files, such as this site's WebP to JPG converter, and download the result.
Can I just rename a PNG file to JPG?: No. Renaming changes only the extension, not the data inside. Convert the image properly so the portal reads it correctly.
Which image format gives the smallest file size?: For photos, HEIC and WebP are usually smallest, then JPEG, while PNG is largest. For forms, JPEG is the practical choice because it is accepted almost everywhere.