JPG vs PNG: which image format should you use?
Compare JPG and PNG compression, transparency, quality and file size so you can choose the right format for photos, graphics and websites.
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Practical explanations, honest limitations and practical steps for common PDF, image, OCR and privacy tasks.
These guides explain specific file decisions, with steps you can repeat on your own files and checks to make before sharing the result. We explain tradeoffs and limits instead of promising that one format or setting works for every file.
Showing 26 of 26 guides
Compare JPG and PNG compression, transparency, quality and file size so you can choose the right format for photos, graphics and websites.
Read guideLearn what makes PDFs large, which compression methods are safe, and why some documents shrink much more than others.
Read guideConvert iPhone HEIC images to compatible JPG files while understanding quality, metadata and privacy tradeoffs.
Read guideCreate a scannable Wi-Fi QR code, choose the correct security type and test it before printing or sharing.
Read guideAdd a strong PDF password, share it safely and understand what document encryption can and cannot protect.
Read guideChoose a sensible page size, order mixed images correctly and avoid blurry or oversized PDFs when combining photos and scans.
Read guideReduce image size without guessing by choosing the right dimensions, format and quality for the destination.
Read guideUnderstand aspect ratio, cropping, upscaling and ready-made dimensions before resizing a photograph or graphic.
Read guideUnderstand what EXIF metadata can reveal, when to remove it and how to verify a cleaned sharing copy.
Read guideCombine reports, scans and attachments without losing track of page order, duplicates or protected documents.
Read guideChoose page ranges safely, reduce accidental disclosure and verify every extracted PDF before sharing it.
Read guideImprove recognition by preparing straight, readable scans and learn which OCR mistakes always require human review.
Read guideRemove sensitive content from the document itself, verify the result and avoid common visual-redaction mistakes.
Read guideChoose contrast, size, error correction and placement so a QR code works after export, printing and real-world handling.
Read guideCapture straight, readable pages, organize them correctly and review privacy before creating a shareable PDF.
Read guideCompare compatibility, transparency, compression and visual quality before selecting a web image format.
Read guideFind out whether your PDF can be converted, choose between extracting text and editing in place, and clean up the Word file quickly.
Read guideCreate a clean signature image, place it on a PDF, understand the difference between visual and digital signatures, and know when each is accepted.
Read guideTurn bank statements, price lists and reports into editable spreadsheets, and learn a reliable clean-up routine for the columns.
Read guideNumber a merged document, add a title or confidentiality notice to every page, and choose positions that print and read well.
Read guideMark drafts, proofs and preview images clearly, choose placement and opacity, and understand why a watermark is a deterrent rather than protection.
Read guideUnderstand the relationship between pixels, DPI and physical size, calculate what you need for a print, and avoid the most common resolution myths.
Read guideDesign an icon that stays recognisable at 16 pixels, generate every size browsers and phones need, and add the right HTML to your site.
Read guideCompare common barcode types, learn which ones need official registration, and generate, print and test codes that scanners read first time.
Read guideSet up lighting and background, frame the head correctly, crop to the right size and print a photo sheet, while checking your country's official rules.
Read guideUnderstand the difference between uploading files to a converter and processing them in your browser, and learn how to check what any tool really does.
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