Fix a file problem, then use the tool
Each guide starts with a direct answer, gives three practical steps and ends with a result checklist.
UPLOAD LIMIT
How to compress an image to 100KB or less
Reduce JPG, PNG or WebP photos to a 50KB, 100KB or 200KB upload limit and check the before-and-after file size in your browser.
Read guide →IMAGE SIZEHow to resize images to exact pixel dimensions
Enter exact width and height values, preserve the aspect ratio, add padding or crop overflow, and batch resize images in your browser.
Read guide →KOREA ENTRYFix K-ETA and Korea e-Arrival photo upload problems
Convert iPhone HEIC to JPG, prepare a compact K-ETA portrait and keep a Korea e-Arrival passport bio-page clear enough for OCR.
Read guide →KOREAN VISAHow to resize a Korean visa photo to 35×45 mm
Crop a recent front-facing photo to the Korean visa application's 35×45 mm ratio and save a clear JPG without stretching the face.
Read guide →KOREAN DOCUMENTSHow to open an HWP file from a Korean office
Preview an HWP or HWPX document from a Korean school, company or public office without installing Hancom Office.
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