Resize a photo to 100 KB
Make a photo or a picture of a document fit a 100 KB upload limit. The tool below is already set to 100 KB.
- 1 Choose files
- 2 Adjust
- 3 Download
or drag and drop here
JPG, PNG, WebP, HEIC · 30 MBProcessed on this device. Your files are never uploaded.
- ✓ Free
- ✓ No account
- ✓ Files stay on your device
Prove it’s private
This panel counts the network requests this page makes after you choose a file, and how much each one sends. Your file is read and changed on this device. Our code never sends it anywhere.
- Requests since you chose a file –
- To pdfreadygo.com, for tool code and fonts –
- To ad and analytics services –
- Requests that sent a file or binary data –
- Most data sent in one request –
Right now your device is online.
Right now your device is offline, so nothing can be sent.
Ads and analytics can keep making small requests while you work, and they are counted above. Compare the largest one with the size of your file.
Before you chose a file, this page made 0 requests to load itself, its ads and its analytics. This counter can’t see inside ad frames, and ad frames can’t read your file. It also doesn’t list the tool’s background workers, which only load code from this site.
Test it yourself with airplane mode
- Open this page while you are online and wait a few seconds, so it can save itself for offline use.
- Turn on airplane mode, or turn off Wi-Fi and mobile data.
- Choose your file and run the tool. It still works, because nothing has to be sent.
Check it in your browser’s developer tools
- On a computer, press F12, or Option+Command+I on a Mac. In Safari, first turn on the Develop menu in Settings, under Advanced.
- Open the Network tab. In Chrome, Edge or Firefox, type
method:POSTin its filter box to show only requests that send data. - Choose your file and run the tool.
- Check the size of anything listed. Ads and analytics may send small requests of a few kilobytes. None of them comes close to the size of your file.
A few extras, such as the HEIC photo decoder, are only saved after you first use them. Offline, they show an error instead of sending anything.
At 100 KB there is room for more detail than a passport photo: a handwritten declaration, a certificate photographed on a table, or a profile picture for a job portal. The tool finds the highest JPEG quality that fits, and only reduces the pixel size if quality alone isn’t enough. It opens JPG, PNG, WebP and iPhone HEIC files and always saves a JPG.
Good to know before you begin
This tool changes the size of an image. It can’t tell whether a portal will accept your photo, and PDFReadyGo is not connected to any government body, exam board, university or employer. Background, lighting and pose still matter, so check the rules on the site you are uploading to. Transparent areas in a PNG become white.
How to resize a photo to 100 KB
- Select Choose photos, or drag your image onto the box. To give several photos the same limit, pick up to 25 at once and download them all as one ZIP.
- Leave Maximum size in KB at 100. If the form also gives a lowest size, type it in Minimum size in KB.
- If the form asks for exact pixels, type them in Width in pixels and Height in pixels. If it doesn’t, leave both empty and the tool keeps the shape of your photo.
- For a document or handwritten page, set If the shape changes to Fit inside, with white edges, so no text gets cut off. For a face photo, keep Crop to fill, from the center.
- Select Resize photo →, check the preview and the line under Your file is ready., then select Download result ↓.
Where you might see 100 KB, or something close
- IBPS handwritten declaration: the CRP PO/MT-XVI notification asks for an image of 800 × 400 pixels at 200 DPI (preferred), between 50 KB and 100 KB, written in English in black ink, not in capital letters (IBPS notification, checked Nov 3, 2026).
- Kenya passport applications from the US: Kenya’s embassy in Washington, D.C. tells eCitizen applicants to upload documents as JPG or PNG, not PDF, and walks them through resizing each image to 150 KB. If that’s your limit, type 150 in Maximum size in KB (Kenya Embassy ePassport page, checked Nov 3, 2026).
Many job portals and school systems allow 100 KB to 2 MB per image and print the number on the upload page. If yours asks for a PDF instead of a JPG, use Images to PDF with a Target size, or Compress PDF to 100 KB.
Making a document photo readable at 100 KB
- Photograph it flat, from straight above, in daylight. Shadows and a tilted angle waste bytes and make text harder to read.
- Crop to the page. A table or carpet around the paper takes up part of your 100 KB. Scan to PDF can find the page edges for you if you need a PDF.
- Zoom in on the preview after resizing. If small print is hard to read, crop tighter and try again rather than lowering the pixel size.
- Type exact pixels only when asked. Otherwise leave width and height empty, so the tool can keep as much detail as fits.
What we got in our tests
We ran the tool on this page with real files on Nov 3, 2026, in Chrome with an Android phone profile and in Safari’s engine with an iPhone profile. The sizes below are what the tool showed in Chrome. Safari builds JPG files a little differently, so its sizes were not the same, but every file in both browsers came out under the limit.
- A 12-megapixel phone photo (3 MB JPG): 87.2 KB at 1229 × 1638 pixels, with no width or height typed in.
- A declaration-style image at 800 × 400 pixels with a 50 KB minimum: 75.6 KB at 98% quality.
- 600 × 600 pixels: 48.9 KB at 92% quality.
- A 1600 × 1200 landscape photo: 93.8 KB at 1024 × 768 pixels.
Frequently asked questions
Is my file uploaded?
No. The image is read and resized in your browser on your own device.
Why is my file well under 100 KB?
The tool picks the highest JPEG quality that fits. If even the top quality is under the limit, you get that. If the form has a minimum, such as 50 KB, type it in Minimum size in KB.
Can I resize several photos at once?
This page takes one photo at a time. To put several photos into one PDF under a size limit, use Images to PDF and set Target size.
Does the print size matter?
Only if the form asks for one. Print resolution (DPI) changes the printed size saved in the file, not the pixels. IBPS, for example, mentions 200 DPI for the declaration.
Having trouble? Read the FAQ or visit help and contact.