JPG.now Blog

Guides, Tips & How-Tos for Images

Step-by-step guides on converting, compressing, and editing images. No jargon, no fluff, just what works.

24 Articles
90+ Formats Covered
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Guide

ImageMagick Scripting: 15 One-Liners for Real Photo Workflows

Resize a folder of camera JPGs, watermark, batch convert RAW to JPG, and strip metadata from the command line, with copy-paste recipes that work on macOS, Linux, and Windows Subsystem for Linux without any compile-from-source pain.

August 14, 2026
Guide

ExifTool Deep Dive: The 20 Commands Every Photographer Should Memorize

From batch GPS injection and copyright tagging to date repair after a camera clock reset and bulk lens metadata fixes, the ExifTool recipes that save working photographers hours every wedding, event, or sports shoot.

August 13, 2026
Guide

Deleted Photo Recovery From SD Cards: Tools, Limits, and JPG Repair

What is actually recoverable after a quick format or an accidental delete, which free and paid tools work in 2026, and how to repair the partial JPGs that recovery scans bring back broken so they at least preview a thumbnail.

August 12, 2026
Guide

Corrupted JPG Recovery: Salvaging Files With Broken Headers

Practical recovery techniques from hex-editor header repair to thumbnail extraction and segment splicing when a JPG will not open in any viewer, with realistic expectations for what is actually recoverable and what is truly lost.

August 11, 2026
Guide

JPG Forensic Analysis: Detecting Edits, AI Generation, and Recompression

How error-level analysis, quantization-table fingerprints, and metadata clues reveal whether a JPG has been edited, generated by an AI model, or recompressed multiple times, with free tools you can run from your browser or terminal.

August 10, 2026
Guide

Food Instagram From Smartphone: Light, Edit, Export, Post

Window-light positioning tricks, fast color and crop edits in Snapseed or Lightroom Mobile, and the JPG export settings that hold up after Instagram re-compresses uploads, so your salad does not arrive in feed looking gray.

August 09, 2026
Guide

Airbnb and Hostel Listing Photos: Phone-First Workflow That Books Rooms

Wide-angle phone tricks to make small rooms feel open, photo sequencing rules that actually convert browsers into bookings, and the exact JPG dimensions Airbnb and Booking.com prefer for hero images on mobile listings.

August 08, 2026
Guide

Passport Photo at Home: JPG Dimensions, Background, and Compliance

How to shoot, crop, and export a compliant US, UK, and Schengen passport photo as a JPG using only your phone and a window with daylight, including the head-size ratios and background rules that get applications approved.

August 07, 2026
Guide

Print Your Own Postcards: JPG Specs for Moo, Postable, and Local Print

Bleed, safe areas, and resolution for 4x6 and 5x7 postcards across the major online printers, plus a pre-flight checklist that catches the most common print rejections like low DPI, missing bleed, or text too close to the trim.

August 06, 2026
Guide

Travel Photo Edit-and-Share Flow: Phone to Instagram in Five Minutes

A repeatable trip routine: cull on the lock screen, light edit in Snapseed or Lightroom Mobile, export JPG at platform-correct social sizes, and post without burning hotel Wi-Fi caps or losing the original camera-roll file.

August 05, 2026
Guide

School Yearbook Bulk Processing: From 1,200 Portraits to Print PDF

Naming conventions, color-correction passes for mixed studio lighting, and the batch JPG-to-PDF export that yearbook printers like Jostens and Walsworth actually expect, with a downloadable checklist for the yearbook adviser.

August 04, 2026
Guide

Lab Notebook Scanning for Reproducible Research

How to scan handwritten lab notes into searchable, archive-grade JPG and PDF outputs without sacrificing line work on graph paper or losing ink color, plus naming patterns that survive lab moves and PI handovers years later.

August 03, 2026
Guide

Dissertation Figure Handling: Charts, Photos, and Diagrams That Print

When to keep figures as vector versus raster, the DPI requirements that university print services and ProQuest expect, and how to package thesis figures so reviewers can actually open them without resorting to email attachments.

August 02, 2026
Guide

Online Course Slide Optimisation: Faster Load, Sharper Text

Slide-to-JPG export settings for Teachable, Thinkific, Kajabi, and Udemy that cut video bandwidth and quiz-page load times without making screenshots of code samples, diagrams, or tiny on-slide footnotes go blurry on mobile.

August 01, 2026
Guide

Teachers: Turn Word and Excel Docs Into Classroom Signage JPGs

Quick conversion routes for classroom rules, seating charts, schedules, and lab safety posters, plus how to keep printed text crisp at A3 and 11x17 when the original document was a Word file built for letter-sized printing.

July 31, 2026
Guide

3D Render Portfolio Export: Blender, Cinema 4D, and Unreal to Web JPG

Render settings, gamma and color-space handling, and the export pipeline that keeps highlights, shadows, and emissive detail intact when moving from a 32-bit EXR master into web-friendly JPGs for ArtStation and a personal site.

July 30, 2026
Guide

Digitising Vintage Film: 35mm, Medium Format, and Slides

Hardware options under and over five hundred dollars, scan resolution recommendations for each film size, and how to convert TIFF masters into shareable JPGs without baking in dust spots, color casts, or grain artifacts.

July 29, 2026
Guide

Comic Book Scanning: Page Settings, Spine Handling, and JPG vs CBZ

DPI choices for floppies versus trade paperbacks, how to keep newsprint dot patterns from moire-ing across scans, and when to package pages as a CBZ archive instead of distributing individual JPGs through reader apps.

July 28, 2026
Guide

Art Reproduction Prints: Color-Accurate JPGs for Giclee and Canvas

How to photograph or scan original artwork with even lighting and a known color target, then export JPGs that giclee and canvas printers can reproduce without the muddy shadows or shifted reds that kill artist sales.

July 27, 2026
Guide

Estate Sale Cataloguing: Photograph and Organize Hundreds of Items in a Day

A field-tested workflow for tagging, batch-resizing, and exporting JPGs for listing apps like EstateSales.net and printed inventory sheets, with tips for shooting fast in dim rooms without losing important condition details.

July 26, 2026
Guide

Stamp and Coin Macro Imaging: JPG Settings for Collector Catalogs

Lighting setups, white-balance choices, and export presets that capture the surface detail collectors care about for grading and provenance, without producing bloated 50 MB files that nobody can email or upload to auction sites.

July 25, 2026
Guide

Genealogy Photo Scanning: Capture Once, Archive Forever

Recommended scanner settings, naming conventions tied to surname and year, and the TIFF-master plus JPG-derivative split that keeps your family history research usable, shareable, and printable for the next two generations.

July 24, 2026
Guide

Email Signature Images That Actually Render: Outlook, Gmail, and Apple Mail

Why your signature looks broken in some clients but fine in others, the safe pixel-width and KB ceilings that every mail app respects, and how to export a JPG that survives Outlook, Gmail, Apple Mail, and webmail clients alike.

July 23, 2026