Compress JPG to 300 KB
Shrink photos and signatures to a size you choose, like 50 KB.
Runs in your browser — files never leave your device
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How to compress an image to 300 KB
300 KB is a common ceiling for document images on application portals and a sensible weight for a photo on a web page. This page is set to 300 KB and lowers JPEG quality first, reducing pixel dimensions only if that is not enough.
Add one or more images.
Leave 300 KB in the size box.
Click Compress images and download the JPGs, zipped if there are several.
Document images and web photos
A 300 KB ceiling usually belongs to an upload field meant for a picture of a document: a photographed certificate, a utility bill, a signed form, a receipt. At this size a whole page photographed with a phone remains readable down to ordinary small print, which is not reliably true at 100 KB. Outside forms, 300 KB is a reasonable weight for a photo on a website, blog post or online listing, where multi-megabyte originals slow the page down.
The output is always a JPG. A PNG scan or screenshot you add is converted, with any transparent area turned white.
Getting more out of 300 KB
Because the limit counts bytes, not pixels, anything in the frame that is not the subject costs you sharpness. Crop a document photo to the edges of the paper, and a product photo to the product, before you add it. Avoid digital zoom and dim light, since image noise compresses badly. If the upload field also accepts PDF and you have several pages, one PDF is often tidier than several images: JPG to PDF combines them, and the Compress PDF presets then fit the whole file to the limit.
Compress JPG to 300 KB FAQ
Not always. A detailed 12-megapixel shot is often scaled down somewhat, while a cropped photo or a picture of a document usually keeps every pixel. The result lists the final width and height.
Yes, but the output is always a JPG. Screenshots shrink a great deal, though crisp interface text can pick up faint smudges, so check the result if the screenshot is evidence in an application.
No. The tool runs entirely in your browser, so your files are processed on your own device and never leave it.
Yes. Every PDFCraftly tool is free, with no sign-up, no watermark and no email required.
Guides
- SSC Photo and Signature Size: Live Photo Rules and the 10 to 20 KB SignatureSSC photo and signature size for CGL, CHSL, MTS and GD forms: the photo is captured live; the signature is a 10 to 20 KB JPEG of about 6 × 2 cm.
- UPSC Photo, Signature and Photo ID Upload Size for the Online ApplicationUPSC online form upload sizes: photo 20 to 200 KB JPG with 3/4 face coverage, triple signature 20 to 100 KB at 350 to 500 px, photo ID 20 to 300 KB PDF.
- DGIP Online Passport: Photo Under 20 KB and Document Upload SizesDGIP's online passport portal wants a photo of 20 KB or less and JPG or PNG scans under 1 MB. How to compress your photo, CNIC and passport scans so they upload.
- Teletalk Job Application Photo (300×300) and Signature (300×80) Size RulesTeletalk job portals (BPSC, Police, ministries) need a 300×300 px JPG photo under 100 KB and a 300×80 px signature under 60 KB. How to pass both checks.
- Dhaka University Admission Photo: 460–480 × 600–620 px, 30–200 KBThe DU admission portal accepts a JPG photo 460–480 px wide, 600–620 px tall and 30–200 KB. How to crop, compress or enlarge it so it uploads first time.
- Nigerian Passport Photo Upload: 600 × 800 px, Under 2 MB, White BackgroundThe NIS passport portal wants a 600 × 800 px photo under 2 MB on a white background. How to take, crop and shrink a phone photo so the upload passes.
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