Increase JPEG Size
A JPEG's size is decided at the moment it is saved: lower quality, fewer bytes. To make a JPEG bigger for an upload form, it has to be saved again in a way that keeps more data, and this page does that while leaving the picture and its pixel dimensions as they are.
Increase Image Size
or drop JPG, JPEG, JFIF … files here ·
Max 95 MB per file· Up to 20 files· Deleted after 30 minutes
Files are processed on our servers and deleted after 30 minutes.
Auto raises the quality first and then adds invisible padding, so the picture looks the same. Upscale makes the image larger in pixels, which also changes its dimensions.
Upper limit for upscaling: 200% doubles width and height. The tool stops as soon as the minimum size is reached.
Same as input keeps a JPG a JPG and a PDF a PDF. PNG files are naturally larger than JPG for the same picture.
Metadata only, 0 keeps the original value. Some exam portals check for 200 or 300 DPI.
How to use this tool
- 1
Drop in the JPEG
Upload one .jpg or .jpeg, or a batch of up to 20. Photos straight from a phone, WhatsApp downloads and scanner exports all work.
- 2
Set the minimum
Minimum size starts at 30 KB. Replace it with the figure your form asks for, in KB or MB, and leave How to add size on Auto.
- 3
Save the bigger JPEG
Press Increase size and download. The file is still a standard JPEG, upright thanks to Auto orient, with the same width and height as before.
Increasing JPEG size is a re-save, not a stretch. The image is encoded again with less compression, then topped up with harmless padding if the minimum is still out of reach.
Why a JPEG is smaller than a form expects
JPEG compression splits the picture into 8 × 8 pixel blocks and discards the fine variation inside each block that the eye is least likely to miss. The quality setting decides how much is discarded. Every app picks its own default: the reference libjpeg encoder uses 75 on a 0–100 scale, GIMP suggests 90, and Photoshop uses its own 0–12 scale. WhatsApp and many social apps re-save photos at modest quality to save bandwidth.
That is how a sharp phone photo turns into a 25 KB file after passing through a chat app, and why a form with a 30 KB or 50 KB minimum refuses it. The cure is the reverse of compression: save the same pixels again with less thrown away. When the photo has very little content, such as a face against a plain wall, even top quality may not reach the floor, and invisible padding finishes the job.
If the form asks for the size in a specific number of KB, increase JPG size in KB explains how portals count kilobytes. For background on why the same photo can be a .jpg, a .jpeg or a .png, see JPG vs JPEG vs PNG.
- JPEG published as ITU-T T.81
- 1992
- pixel blocks per compression unit
- 8 × 8
- default quality in libjpeg's cjpeg
- 75
- largest single JPEG metadata segment
- ≈64 KB
Four ways to increase JPEG size
The default. Quality goes up first; if the file is still under your minimum, padding fills the gap.
- Picture unchanged
- Dimensions unchanged
- Always reaches the target
A pure re-encode at higher quality, with no padding at all.
- Slightly truer to the original pixels
- May stop short on plain images
The image data is left exactly as it was, and filler goes into a comment segment.
- Bit-for-bit identical picture
- Best when quality is already high
Width and height grow, up to Max enlargement, until the size is reached.
- Only when the form also wants larger dimensions
- Edges soften a little
Check the new JPEG size on any device
iPhone
- 01Save the JPEG to Files.
- 02Press and hold it, then tap Get Info.
- 03Read the size in KB.
Android
- 01Open the Files app.
- 02Tap the three-dot menu on the JPEG.
- 03Choose File info or Details.
Windows and Mac
- 01Windows: right-click, Properties, and read Size, not Size on disk.
- 02Mac: select the file and press Command-I.
- 03Compare the number with the form's minimum.
Increase JPEG size questions
How do I increase JPEG size without losing quality?
Use the Auto method on this page. Raising the quality setting stores the existing pixels more faithfully, and padding stores nothing visible at all, so neither step makes the photo worse. The one thing to avoid is repeatedly saving at low quality in an editor first.
Does re-saving a JPEG at quality 100 restore the lost detail?
No. Detail removed by an earlier low-quality save is gone, and a high-quality re-save keeps the image as it is now, artifacts included. The file grows because the encoder throws less away, not because anything is recovered.
Why did my JPEG barely grow with Raise quality only?
If the photo was already saved at high quality, there is little left to gain, and very plain images such as a signature on white paper stay small at any quality. Switch back to Auto so padding can make up the difference.
Can I make a JPEG bigger by converting it to PNG?
Yes, a PNG of the same photo is usually several times larger because it is lossless. Choose PNG in Output format, but only if the form accepts PNG; most exam and job portals list JPG or JPEG alone. The JPG to PNG converter does the same without a size target.
Does Keep metadata change the size of a JPEG?
It can. Phone photos carry EXIF data such as camera model, date, settings and often a small preview thumbnail, which together can take a noticeable share of a small file. Removing it shrinks the file, which is why Keep metadata stays on here.
Why does my JPEG show up sideways on the form?
Phones often store a photo unrotated and add an orientation tag that tells viewers to turn it. Some upload forms ignore the tag. Auto orient rotates the actual pixels so the photo is upright everywhere.
- Increase JPG Size in KBIncrease JPG size in KB with the kilobyte math done for you: 1,000 vs 1,024 bytes, the number to type for 20, 50 or 100 KB, and why forms still say too small.
- Increase Image Size in KBIncrease a photo's file size in KB to pass a form's minimum, such as 20 KB, without changing how it looks or its pixel dimensions. JPG, PNG and PDF.
- Increase Image Size to 50 KBRaise a photo, thumb impression or handwritten declaration to 50 KB for bank and exam forms. Saves as JPG, keeps the pixel size, adds no visible change.
- Increase Image Size to 100 KBMake a photo, scan or signature at least 100 KB for a form that rejects smaller files. Same width and height; quality raised first, then invisible padding.
- Compress JPEG to 50 KBMake a photo, signature or thumb impression a JPEG under 50 KB for application forms that ask for several scans. Batch upload, exact size, free.
- Increase PDF File SizeHow to increase PDF file size when a form says the file is too small: pad it, re-render the pages at higher dpi, or export and scan differently.