How to Compress Image to 30KB Online
Compressing an image to exactly 30KB is straightforward with this free online tool. Upload your image by dragging it into the upload area, clicking to browse your device, or pasting from the clipboard with Ctrl+V. The tool accepts JPG, PNG, WEBP, BMP and GIF formats up to 20MB. As soon as the image loads, compression begins automatically targeting 30KB using a binary search algorithm that adjusts JPEG quality until the file is within 3% of the target.
After processing, review the stat boxes showing original size, output size, percentage saved, dimensions, quality used and format. If the result meets your requirement, click Download. The file saves as image_compressed_30kb.jpg to your device. No server upload happens — the Canvas API processes everything in your browser. For state PSC portals that require a maximum of 30KB, target 27–28KB to stay comfortably within the limit and avoid any rounding differences between browsers.
If you need to match specific dimensions (such as APPSC's 140×60px signature or TNPSC's 150×50px signature), select "No — resize to" in Keep Dimensions and enter the required pixel values. The tool will resize and then compress to 30KB simultaneously. Always download in JPG format for state PSC portals — PNG files are rarely accepted and would be significantly larger.
Which Exams Need 30KB Image?
The 30KB limit is most commonly found in state-level PSC (Public Service Commission) exams across India. Andhra Pradesh Public Service Commission (APPSC) specifies a maximum of 30KB for signature uploads. Telangana State Public Service Commission (TSPSC) uses the same 30KB maximum for signatures. Tamil Nadu Public Service Commission (TNPSC) requires signatures at max 30KB with slightly different dimensions (150×50px instead of the standard 140×60px).
Karnataka Public Service Commission (KPSC) and Maharashtra Public Service Commission (MPSC) also commonly use 30KB as the maximum for signature uploads. Rajasthan Public Service Commission (RPSC) signature requirements sometimes use 30KB. SBI PO and SBI Clerk signature requirements hover close to 30KB (typically 10–20KB, but 30KB remains a safe target if you want a single compressed version for multiple portals).
State PSC photo uploads may also require 30KB in specific notification cycles. UPPSC (Uttar Pradesh PSC) requires minimum 30KB for photos (maximum 100KB), making 30KB the exact minimum target. When an exam specifies "minimum 30KB, maximum 100KB", compress your photo to exactly 50KB to stay safely within both limits. This tool lets you target any KB value precisely.
Why do state PSCs use 30KB instead of the central government standard of 20KB? State portals often have different technical standards and were built by different vendors. The 30KB limit gives slightly more room for signature image quality than the stricter 20KB of central exams. Higher KB limits generally mean better quality results, especially for signatures with complex ink patterns or cursive writing.
APPSC and TSPSC Signature at 30KB
APPSC (Andhra Pradesh PSC) and TSPSC (Telangana PSC) are two of the most prominent state service commissions in South India. Both conduct Group 1, Group 2, Group 3 and various other recruitment exams annually. For both portals, the signature requirement is typically 140×60 pixels, maximum 30KB, JPG format. The signature should be of the candidate in black ink on plain white paper.
To prepare a 30KB signature for APPSC/TSPSC: Sign on plain A4 white paper using a black ball-point pen. Photograph from directly above in good light, or scan at 150 DPI. Crop the image to include only the signature with minimal white border. Upload to this tool with target set to 28KB (not exactly 30KB, to leave a margin). Select "No — resize to" with 140 width and 60 height. Download as JPG. Verify the file size before uploading to the portal.
APPSC portal tips: If you get a "file size exceeds limit" error, your signature is above 30KB. If you get a "dimensions invalid" error, check that you are uploading at 140×60px and not the original camera resolution. If the portal gives no error but shows a blurry preview, the quality may be too low — try increasing to 140×60px dimensions with a 28KB target for better quality. Always preview your uploaded signature in the portal before final form submission.
30KB vs 50KB vs 20KB Quality Comparison
Understanding quality differences helps you choose the best target. At 20KB for a 140×60px signature, JPEG quality typically falls around 55–70%, producing slightly artifact-heavy edges on pen strokes but still clearly readable. At 30KB, quality rises to approximately 75–85% — the same signature looks noticeably smoother with less compression artifact around curved letters. At 50KB, quality reaches 90–95% — nearly indistinguishable from the original scan.
For photos at 200×230px: 20KB allows roughly 30–40% quality (acceptable for forms). 30KB improves to 45–60% quality — faces look clearer and skin tones more natural. 50KB achieves 70–80% quality — standard exam photo quality. If your exam allows up to 50KB for signatures (some portals do), use 50KB for the best quality. Only drop to 30KB or 20KB if the portal strictly enforces those as maximums.
State PSC Career Guide
State PSC exams offer some of the most stable and well-compensated government careers in India. APPSC Group 1 posts include Deputy Collector, Deputy Superintendent of Police, Commercial Tax Officer and similar senior roles, with pay scales typically ranging from ₹44,100 to ₹1,32,300 plus allowances in Andhra Pradesh. TSPSC Group 1 offers similar pay for Telangana government posts. Both states provide DA, HRA, TA, medical benefits, pension and promotion opportunities.
APPSC Group 2 posts cover Assistant Section Officer, Junior Accountant, Senior Accountant and other Gazetted and Non-Gazetted roles. Group 2 salaries typically range from ₹26,600 to ₹77,000 depending on the specific post and pay level. TSPSC Group 2 offers comparable salaries for similar positions in Telangana departments. Both states frequently advertise these positions, making them highly competitive but also offering relatively regular recruitment cycles.
Preparation for APPSC Group 1 requires strong knowledge of Andhra Pradesh history, geography, polity and economy along with standard subjects like Indian history, geography, economics, science and current affairs. TSPSC Group 1 similarly emphasizes Telangana-specific content. Both exams include a Preliminary paper (General Studies and Mental Ability), Mains papers (multiple papers with optional subjects), and an Interview stage for Group 1 posts.
Beyond APPSC and TSPSC, state PSC exams across India follow similar patterns. TNPSC Group 1, KPSC Group A, MPSC Group A, UPPSC PCS, BPSC and WBCS all offer prestigious career opportunities. The common thread is a multi-stage selection process combining preliminary exams, detailed mains papers, and personal interview. Technical accuracy in form submission — including correct image sizes — is the first step in any application process.
Frequently Asked Questions
Yes. Free, instant, no watermark. Compress unlimited images to 30KB without any registration.
APPSC signature (max 30KB), TSPSC signature (max 30KB), TNPSC signature (max 30KB), KPSC signature (max 30KB), MPSC (max 30KB).
Yes. For 200×230px photo, 30KB gives moderate quality. Use 50KB for better quality if your exam allows it.
APPSC signature: 140×60 pixels, maximum 30KB, JPG format. Black ink on white paper, not capital letters.
30KB allows a slightly better quality setting. At the same dimensions, 30KB looks noticeably better than 20KB with less JPEG artifact.
Yes. Binary search algorithm targets exactly 30KB. Result is typically 29–31KB, within the portal's accepted range.
One at a time. Upload, compress, download, then process the next image. There are no limits on how many you can process.
JPG always. SSC, APPSC, TSPSC all require JPG format for signature uploads. PNG is not accepted.
TNPSC signature: 150×50px, max 30KB. Different from the standard 140×60px. Use correct dimensions for TNPSC portal.
UPPSC allows 30–100KB for photos. 30KB is the minimum. Compressing photo to exactly 30KB meets the UPPSC minimum requirement.
Yes. 29.8KB is below 30KB limit. Our tool targets 28–30KB for a safety margin below the maximum.
Use Custom option, type 25. Tool targets that exact size using the same binary search algorithm.
If portal says "max 30KB exceeded", compress here targeting 28KB for a safe margin below the limit.
Upload to this tool, target 28KB (safely below the 30KB APPSC limit). Download and reupload to the portal.
If dimensions also match (140×60px for most, 150×50px for TNPSC). Always check each exam's official notification.