About DPI Checker
Choose a picture and press the button. The tool reads the resolution stored in the file, or tells you that none is stored, and shows the printed size at that DPI and at 300 DPI.
iLikePDF's DPI Checker tool lets you read the DPI stored in a JPG or PNG and see the print size it gives – free and without any software. It is a good fit for checking a scan before a print job or a form upload, finding out why a picture prints small and verifying a DPI you set. You may also know it as dpi checker online, dpi checker free.
Everything happens in your browser: your files are not uploaded to our servers. It is private by design, quick to use and mobile-friendly.
How to Use DPI Checker
- Select your JPG or PNG.
- Press Check DPI.
- Read the DPI and the print sizes in the table.
Before & After
Before (Original picture)
- Your picture as it is
- Nothing changed yet
- Original kept safe
After (Edited copy)
- Effect applied on your device
- Full resolution result
- Original stays untouched
Conceptual illustration, not a screenshot.
Supported Input and Output
| Input | JPG, PNG, WebP, GIF, BMP or AVIF pictures |
| Output | Result table |
| Reads | JFIF header, EXIF resolution, PNG pHYs |
| Shows | DPI, pixel size, print size in cm and inches |
| Upload | None: runs in your browser |
DPI Checker Features
- ✅ 100% free – no payment, no sign-up, no watermark.
- ✅ No software – dpi checker online straight in your browser.
- ✅ Private by design – your file is processed on your device, not uploaded to our servers.
- ✅ Reads the real file – nothing is guessed.
- ✅ Works on mobile and desktop – Android, iPhone, Windows and Mac.
Who Should Use DPI Checker?
- Students – Check the size, DPI or details a portal asks about.
- Job Seekers – Confirm the DPI or metadata of your photo before an upload.
- Professionals – Inspect and clean pictures before they are published.
- Small Businesses – Remove hidden data from product and event photos.
- General Users – See what a photo reveals before you share it.
DPI and Pixels Explained
DPI (dots per inch) tells a printer how many pixels to print per inch. It does not change how many pixels the picture has. The same picture prints large at low DPI and small at high DPI.
| Pixels | 72 DPI | 150 DPI | 300 DPI | 600 DPI |
|---|---|---|---|---|
| 600 × 800 px | 21.2 × 28.2 cm | 10.2 × 13.5 cm | 5.1 × 6.8 cm | 2.5 × 3.4 cm |
| 1200 × 1600 px | 42.3 × 56.4 cm | 20.3 × 27.1 cm | 10.2 × 13.5 cm | 5.1 × 6.8 cm |
| 2480 × 3508 px | 87.5 × 123.8 cm | 42.0 × 59.4 cm | 21.0 × 29.7 cm | 10.5 × 14.9 cm |
Tips for Best Results
- Many pictures store no DPI. Programs then assume 72 or 96.
- Pixel size matters more than the DPI label for most uploads.
Limits and Things to Know
- Screenshots and messaging apps often strip resolution data.
Related Tools and Guides
Quick Summary
| Feature | Details |
|---|---|
| Tool name | DPI Checker |
| Cost | 100% free |
| Software required | No |
| File upload | No – processed in your browser |
| Supported devices | Mobile & desktop |
| Best for | Checking a scan before a print job or a form upload |
Share This Tool
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Disclaimer
DPI Checker is for personal and educational use. Check your local laws and your organisation's rules before you process copyrighted or sensitive documents. Results depend on your file and browser, so always check the output before you use it.
FAQs – DPI Checker
1. DPI Checker kaise use karein?
Apni file select karein, settings check karein aur “Check DPI” button dabayein. Result neeche dikhega; phir Download par tap karein.
2. Kya DPI Checker free hai?
Haan, iLikePDF ka DPI Checker tool bilkul free hai. Koi payment ya signup nahi chahiye.
3. Kya main mobile se DPI Checker use kar sakta hoon?
Haan, yeh tool mobile-friendly hai. Aap Android ya iPhone ke browser se bhi DPI Checker use kar sakte hain.
4. Kya meri file upload hoti hai?
Nahi. Yeh tool aapke browser me chalta hai; aapki file iLikePDF ke server par upload nahi hoti. (Kuch features ek helper library CDN se load karte hain, lekin aapki file unme nahi jaati.)
5. How do I check the DPI of an image?
Choose the picture and press Check DPI. The stored value is shown.
6. Why does it say no DPI stored?
The file has no resolution field. Set one with the Convert DPI tool.
7. How to use dpi checker?
Use DPI Checker on this page. It runs in a normal browser on computers and phones, with no software and no account.
8. What is the best way to check the DPI of an image?
The quickest way is DPI Checker on this page. Choose your file, check the settings and press the button. Nothing needs to be installed.
9. Do I need to install software to check the DPI of an image?
No. The tool runs inside your browser, so there is nothing to download or install.
10. Which file types work with DPI Checker?
It works with JPG, PNG, WebP, GIF, BMP and AVIF files that your browser can open.