How do I check the DPI of an image online?

Upload your image (JPG or PNG) to our free DPI Checker tool. It instantly reads the embedded DPI metadata from your file and displays the DPI, pixel dimensions, print size, file size, megapixels, aspect ratio, and a print-readiness verdict — all within 1 second. No signup or software required.

What DPI is required for exam photo uploads in India?

Most Indian government exam portals (IBPS, SSC, UPSC, NTA, RRB) require photos at 200–300 DPI with pixel dimensions of 200×230 pixels. Our DPI Checker shows your current DPI and checks it against 20+ exam and print standard presets so you know instantly if your photo meets requirements.

What is a good DPI for printing photos?

300 DPI is the gold standard for professional photo printing. At 300 DPI, prints appear sharp and smooth to the naked eye. 150–200 DPI is acceptable for draft or home printing. Below 150 DPI, prints may appear soft or pixelated. Our DPI Checker rates your image as Excellent (300+ DPI), Good (150–299 DPI), or Low (below 150 DPI).

Can I check DPI without installing software?

Yes! Our DPI Checker works entirely in your browser — no software, no app, no signup required. Upload your image and get full DPI analysis instantly. Works on Windows, Mac, Linux, Android, and iPhone.

Is my image safe when I check its DPI?

Yes — 100% safe and private. All DPI analysis happens entirely in your browser. Your images are never uploaded to any server, never stored, and never seen by anyone. We have zero access to your files.

What is the difference between DPI and resolution?

Resolution refers to the total number of pixels in an image (e.g. 600×600 pixels = 360,000 pixels). DPI (Dots Per Inch) is a density measurement that links those pixels to a physical print size. A 600×600px image at 300 DPI prints at 2×2 inches. The same image at 72 DPI would be mapped to an 8.3×8.3 inch print area — the same pixels, just spread more thinly.

What does the print size calculator show?

Our DPI Checker's built-in print size calculator shows exactly how large your image will print at its current DPI — in inches, centimetres, and millimetres. It also shows what size it would print at 72, 96, 150, 300, and 600 DPI so you can see how DPI affects physical print dimensions.

Can I export my DPI check results?

Yes! After checking your image DPI, click 'Export Report' to download a detailed .txt report containing all image metadata: DPI, pixel dimensions, print sizes at multiple DPIs, file size, format, megapixels, aspect ratio, and compliance status for common exam and print standards.

DPI Checker – Check Image DPI Online Free | Instant Photo DPI Analyzer 2026

Q: Why does my image show 72 DPI?

Images saved from websites, social media, or WhatsApp are typically tagged at 72 or 96 DPI — the standard screen resolution. This does not mean the image is low quality; it just means the DPI metadata tag is set for screen viewing, not print. Our DPI Checker shows you the actual pixel count so you can assess true resolution independent of the DPI tag.

Q: How do I check the DPI of multiple images at once?

Our DPI Checker supports batch checking of up to 10 images simultaneously. Drag and drop multiple files into the upload zone or click to select multiple files. Each image is analyzed and shown in a results grid with individual DPI, pixel dimensions, and compliance status.

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Drop Images Here to Check DPI Instantly

Upload up to 10 images at once for batch DPI analysis · Your files never leave your browser
Reads embedded EXIF (JPEG) & pHYs (PNG) metadata · Instant print-readiness verdict

JPEG / JPG PNG WebP BMP GIF TIFF

DPI Checker – The Complete Guide to Checking & Understanding Image DPI (2026)

Our DPI Checker is the most advanced, free, browser-based tool for instantly analyzing the DPI of any image — reading directly from the file's embedded metadata (EXIF for JPEG, pHYs chunk for PNG) and delivering a full analysis report in under one second. Whether you need to verify an exam photo's DPI before uploading to a government portal, check if a file is print-ready at 300 DPI, or analyze batch images from a photo shoot, this tool gives you complete, professional-grade DPI intelligence.

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1-Second Analysis

Reads JPEG EXIF and PNG pHYs DPI metadata instantly — results appear in under 1 second per image.

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Batch Check 10 Images

Drag-and-drop up to 10 images at once for simultaneous DPI analysis across your entire batch.

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Visual DPI Gauge

Colour-coded semicircular gauge shows DPI visually — green (excellent), amber (good), red (low).

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Compliance Checker

Checks your image against 12 preset standards: IBPS, UPSC, SSC, NTA, Passport, Print, Web, and more.

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Multi-DPI Print Table

Shows exact print dimensions at 72, 96, 150, 300, and 600 DPI — in inches and millimetres.

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Export Full Report

Download a detailed .txt DPI report for each image, or export all results at once.

What Does a DPI Checker Tell You?

A DPI Checker reads the DPI metadata tag embedded in an image file and, combined with the image's pixel dimensions, provides a complete picture of the image's resolution characteristics. Here is exactly what our checker analyzes for every uploaded image:

📊 Metadata Extracted

Embedded DPI: The exact DPI value stored in the file's EXIF (JPEG) or pHYs (PNG) metadata chunk
Pixel Dimensions: Width × Height in pixels (e.g. 600×600px, 413×531px)
File Size: Actual file size in KB or MB
File Format: JPEG, PNG, WebP, BMP, GIF, TIFF
Megapixels: Total pixel count (Width × Height ÷ 1,000,000)
Aspect Ratio: Width-to-height ratio (e.g. 1:1 square, 4:3, 3:4 portrait)
Color Mode: RGB, CMYK, Grayscale (where detectable)

🖨️ Print Analysis Generated

Current Print Size: Exact physical size at embedded DPI (inches + mm)
Print size at 72 DPI: Standard web resolution print mapping
Print size at 96 DPI: Windows screen resolution mapping
Print size at 150 DPI: Draft / newspaper print mapping
Print size at 300 DPI: Professional print standard
Print size at 600 DPI: High-end / fine art print mapping
Print-readiness verdict: Excellent / Good / Low with specific recommendations

How to Check Image DPI – Step-by-Step

Upload Your Image(s): Click "Select Images" or drag and drop directly into the tool. You can upload up to 10 images simultaneously for batch DPI checking — JPG, PNG, WebP, BMP, GIF, TIFF all supported.
Instant Analysis: The tool reads the embedded EXIF DPI from JPEG files and the pHYs metadata chunk from PNG files. Results appear in under 1 second. If no DPI tag is found in the file, the tool displays "No DPI tag" and notes the likely source (web image = 72 DPI assumption).
Read the DPI Gauge: Each result card shows a colour-coded semicircular gauge. Green needle = 300+ DPI (Excellent, print-ready). Amber = 150–299 DPI (Good, acceptable). Red = below 150 DPI (Low, not suitable for quality printing).
Check the Print Size Table: Each card shows exactly how large your image will print at 5 standard DPI values — from 72 DPI (web) to 600 DPI (fine art). This tells you instantly whether your image is large enough for your intended print size.
Check Compliance Status: The compliance section compares your image against 12 preset standards — IBPS exam photo (200×230px), UPSC (340×410px), US Passport (600×600px), India Passport (413×531px), professional print 300 DPI, web 72–96 DPI, and more. Each shows ✅ Pass, ⚠️ Close, or ❌ Fail.
Export Report: Click "Export Report" on any result card to download a complete .txt file with all metadata, print sizes, and compliance verdicts for that image. Use "Export All" to get reports for every checked image in one download.

ℹ️ Important Note on DPI Reading: DPI metadata is only reliably embedded in JPEG and PNG files. WebP, BMP, and GIF files rarely contain DPI metadata — for these formats, our checker displays the pixel dimensions and calculates print sizes at standard DPI values, but shows "No DPI tag" for the embedded DPI field. Always use JPEG or PNG for government portal uploads that specify DPI requirements.

DPI Requirements for Every Major Indian Exam Portal (2026)

Every Indian government exam portal enforces photo specifications during online application. Failing to meet these leads to form rejection, upload errors at step 3 of the application, or — worse — rejection during document verification at the exam centre. Our compliance checker verifies your photo against all of these simultaneously:

Exam / Portal	Pixels (W×H)	Effective DPI	Max File Size	Format	Notes
IBPS PO / Clerk / SO / RRB	200×230	~200 DPI	100 KB	JPEG	ibps.in · Photo + Signature required
SBI PO / Clerk / SO	200×230	~200 DPI	50 KB	JPEG	sbi.co.in · Same spec as IBPS
UPSC Civil Services (Prelims)	340×410	~295 DPI	300 KB	JPEG	upsconline.nic.in · Larger photo size
SSC CGL / CHSL / GD / MTS	200×230	~200 DPI	100 KB	JPEG	ssc.nic.in · Also requires signature
NTA – NEET / JEE Main	200×230	~200 DPI	100 KB	JPEG	nta.ac.in · White background mandatory
RRB NTPC / Group D / ALP	200×230	~200 DPI	100 KB	JPEG	indianrailways.gov.in
India Passport (PSP Portal)	413×531	300 DPI	1 MB	JPEG	passportindia.gov.in · 35×45 mm
UPSC CAPF / NDA / CDS	340×410	~295 DPI	300 KB	JPEG	upsc.gov.in
State PSC Portals	200–350×230–420	200–300 DPI	50–200 KB	JPEG	Varies by state
RBI Grade B / NABARD	200×230	~200 DPI	50 KB	JPEG	rbi.org.in
LIC ADO / AAO / HFL	200×230	~200 DPI	50 KB	JPEG	licindia.in

💡 Quick Tip: All of the above exam portals accept photos at 200×230px with DPI between 100–300. The pixel dimensions matter more than the exact DPI tag on these portals — they validate pixel width/height and file size, not the embedded DPI metadata. Our DPI Checker shows both so you can be confident on all counts.

DPI Checker vs DPI Converter – What's the Difference?

🔍 DPI Checker (This Tool)

Purpose: Read and display the existing DPI of any image
Action: Analysis only — no modification to the file
Shows current DPI, pixel count, print size, compliance status
Supports batch checking of up to 10 images simultaneously
Exports detailed metadata reports
Use when: You want to know what DPI your image already has, whether it meets a portal's requirements, and what print size it maps to

🔄 DPI Converter (convert-dpi tool)

Purpose: Change the DPI of an image from one value to another
Action: Modifies the DPI metadata and downloads new file
Change 72 DPI to 300 DPI (metadata only or with resampling)
Pixels↔Dimensions calculator for planning purposes
DPI reference table for exam and print standards
Use when: You have identified the DPI issue using the Checker and now need to fix it by converting the DPI

✅ Best Workflow: Use the DPI Checker first to identify whether your image has a DPI issue. If the DPI is wrong, use the DPI Converter to fix it. Both tools work together as a complete DPI management solution.

Understanding the DPI Gauge – Green, Amber & Red Explained

Each result card in our DPI Checker displays a semicircular DPI gauge with a colour-coded needle that instantly communicates the quality level of your image's DPI:

Gauge Colour	DPI Range	Verdict	Best For	Recommended Action
🟢 Green – Excellent	300 DPI and above	Print Ready	Professional printing, passport photos, exam portals, magazines	No action needed — your image is fully print-ready
🟡 Amber – Good	150–299 DPI	Acceptable	Home printing, draft prints, web use, some exam portals	Acceptable for most purposes; convert to 300 DPI for professional printing
🔴 Red – Low	Below 150 DPI	Screen Only	Web display, social media, email — not suitable for quality printing	Use DPI Converter to change to 300 DPI, or source a higher-resolution original

Why Images from WhatsApp, Social Media & Websites Show Low DPI

One of the most common questions we receive is: "My photo looks sharp on screen but the DPI Checker shows only 72 DPI — why?" Here is the explanation:

When you save an image from WhatsApp, Instagram, Facebook, Google Images, or any website, the image is typically saved with a DPI metadata tag of 72 DPI or 96 DPI. This is the standard screen resolution for web and mobile displays. It does not mean the image is low-quality or has few pixels — it just means the DPI tag is set for screen viewing.

For example, an Instagram photo downloaded to your phone might be 1080×1080 pixels — that's actually more than enough pixels for a 3.6×3.6 inch print at 300 DPI. But the file is tagged at 72 DPI, so printers and portals will interpret it as a 15×15 inch image (1080÷72). This causes confusion and sometimes rejection.

The fix: Use our DPI Converter to re-tag the image at 300 DPI (Metadata Only mode). This does not change any pixels — it just corrects the interpretation tag. The DPI Checker will then confirm 300 DPI after conversion.

How Our DPI Checker Reads Metadata – Technical Deep Dive

📷 JPEG / JPG – EXIF Data Reading

JPEG files store metadata in EXIF (Exchangeable Image File Format) data embedded in APP1 or APP0 segments immediately after the SOI (Start of Image) marker. Our checker parses the binary JPEG stream to find:

Tag 0x011A (XResolution): Horizontal DPI as a rational number (numerator ÷ denominator)
Tag 0x011B (YResolution): Vertical DPI
Tag 0x0128 (ResolutionUnit): 1 = No unit, 2 = Inch (DPI), 3 = Centimetre (DPCM)
JFIF APP0: Alternative DPI storage in the JFIF header (used by many cameras)

If both EXIF and JFIF DPI values exist, EXIF takes precedence. If neither is found, the tool reports "No DPI tag" and displays the pixel dimensions for manual calculation.

🖼️ PNG – pHYs Chunk Reading

PNG files store pixel density in the pHYs (Physical Pixel Dimensions) chunk. Our checker scans the PNG binary stream for this chunk and reads:

Pixels per unit X axis: Horizontal density value
Pixels per unit Y axis: Vertical density value
Unit specifier: 0 = Unknown unit (no absolute DPI), 1 = Metre (converts to DPI by multiplying by 0.0254)

If the unit specifier is 0, the pHYs chunk gives pixel aspect ratio only, not true DPI. Our tool distinguishes this case and reports accordingly. Many PNG files from web sources have no pHYs chunk at all — in this case "No DPI tag" is displayed.

🌐 WebP, BMP, GIF

WebP, BMP, and GIF formats rarely embed DPI metadata in a standardized way. Our checker reads pixel dimensions from these formats and calculates print sizes at standard DPI values, but typically cannot extract an embedded DPI value from these formats.

Batch DPI Checking – How to Check Multiple Images at Once

Our DPI Checker supports batch checking of up to 10 images simultaneously — a major time-saver for photographers, exam applicants managing multiple photo requirements, and document professionals:

Select Multiple Files: Click "Select Images" and hold Ctrl (Windows) or Cmd (Mac) to select multiple files, or drag a group of images from your folder directly onto the upload zone.
Simultaneous Analysis: All selected images are analyzed simultaneously. Results appear as a responsive card grid — each image gets its own detailed result card with full metadata, DPI gauge, print size table, and compliance status.
Summary Dashboard: A summary bar at the top shows at a glance how many images are Excellent, Good, and Low DPI — perfect for quickly identifying which files need conversion.
Individual Actions: Each card has its own Export Report and Copy Info buttons — letting you act on individual images within the batch.
Export All: Use the "Export All" button to download a consolidated .txt report covering all images in the batch — ideal for record-keeping or sharing with a client or photographer.

⚠️ Privacy Guarantee: Even in batch mode, all 10 images are processed entirely within your browser. None of your images are uploaded to any server, stored in any database, or transmitted over the network. The DPI reading happens using JavaScript's FileReader API and binary parsing — completely local and private.

Common DPI Checker Results & What They Mean

DPI Checker Result	What It Means	Common Source	Fix Required?
72 DPI	Standard web/screen resolution tag	Website images, social media downloads, screenshots	Re-tag to 300 DPI for print
96 DPI	Windows screen standard resolution	Windows screenshots, Office document exports	Re-tag to 300 DPI for print
150 DPI	Draft print quality — borderline acceptable	Some phone cameras, older scanners	Convert to 300 DPI for professional print
200 DPI	Good quality — meets many exam portals	Some cameras, exam-ready resized photos	Usually no fix needed for portal uploads
300 DPI	Professional print standard — excellent	DSLR cameras, professional scanners, resized files	No fix needed — print ready
350–600 DPI	High quality — fine art / press standard	High-end scanners, medium format cameras	No fix needed — exceptional quality
"No DPI tag"	No DPI metadata embedded in the file	WebP, BMP, GIF files, some older JPEG files	Use DPI Converter to embed 300 DPI tag
Very high DPI (1200+)	Film scan or specialist scanner output	Film scanners, archival document scanners	May need downsampling for email/portal upload

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Frequently Asked Questions – DPI Checker

How do I check the DPI of an image for free?

Simply upload your image (JPG, PNG, WebP, BMP) to our DPI Checker above — no signup, no software, no cost. The tool instantly reads the embedded DPI metadata and displays a complete analysis including DPI value, pixel dimensions, print size at multiple DPI values, file size, megapixels, and compliance status against 12 preset exam and print standards. Click "Export Report" to save the results as a .txt file.

Why does my image show 72 DPI when it looks sharp on screen?

72 DPI is the standard web screen resolution tag — it means the image was originally saved for web/screen viewing. It has nothing to do with sharpness on screen. A 600×600 pixel image looks perfectly sharp on any screen regardless of its DPI tag (72, 96, or 300 DPI). The DPI tag only matters for printing, where it tells the printer how densely to map the pixels to paper. Use our DPI Converter to re-tag the image at 300 DPI for printing without changing any pixels.

What DPI does my IBPS / SSC / UPSC exam photo need?

Most Indian exam portals (IBPS, SSC, UPSC, NTA, RRB) validate pixel dimensions and file size, not the DPI tag directly. IBPS requires 200×230 pixels at under 100 KB. UPSC requires 340×410 pixels. At these pixel counts, the effective DPI is approximately 200–300 DPI for passport-size prints. Our DPI Checker's compliance section checks your image against all major exam portal pixel requirements automatically — green tick means you're good to upload.

How do I check the DPI of multiple images at once?

Our DPI Checker supports batch checking of up to 10 images simultaneously. Hold Ctrl (Windows) or Cmd (Mac) while clicking files to select multiple, or drag a group of images onto the upload zone. Each image gets its own result card with full DPI analysis. A summary dashboard shows counts of Excellent / Good / Low DPI images across your batch.

My image shows "No DPI tag" – what does this mean?

"No DPI tag" means the image file does not contain an embedded DPI metadata value. This is common for WebP, BMP, GIF files, and some JPEG files saved without EXIF data. It does not mean the image has poor resolution — it just means no density information was written into the file's metadata. The DPI Checker still shows your pixel dimensions and calculates print sizes at standard DPI values. To embed a DPI tag, use our DPI Converter.

Is 200 DPI good enough for exam portal photo uploads?

For most Indian exam portals, yes. Portals like IBPS, SSC, and NTA primarily validate pixel dimensions (200×230px) and file size (<100KB) — not the embedded DPI tag. A photo that is correctly 200×230 pixels will upload successfully regardless of whether the DPI tag reads 72, 200, or 300. That said, 300 DPI is the professional standard and is recommended for passport applications and any physical document printing.

Can I check DPI on my mobile phone without an app?

Yes — our DPI Checker works perfectly on mobile browsers. Open examphotoresize.in/dpi-checker in Android Chrome or iPhone Safari, tap "Select Images", choose from your gallery, and get instant results. No app download required. The full batch-check and export features work on mobile too.

How do I check DPI in Photoshop or Windows?

In Photoshop: Image → Image Size → look at "Resolution" field. In Windows Explorer: right-click the image → Properties → Details tab → look for "Horizontal resolution" and "Vertical resolution". In Mac Preview: Tools → Show Inspector → click the Info tab. On Google Docs/Drive: DPI cannot be checked — use our online DPI Checker instead. Our tool is faster and more detailed than any of these methods and works on any device without software.

Will the DPI Checker upload my image to the internet?

No — never. All image processing happens 100% in your browser using JavaScript. Your images are read locally using the FileReader API and analyzed using binary parsing — zero network requests are made with your image data. This is true even for batch checking of 10 images simultaneously. Your files are 100% private and never stored anywhere.