From birthday posts and memes to professional product photos and business announcements, adding text to images is something millions of people do every day. You don't need Photoshop, Canva, or any app — you can do it entirely free in your browser using PDFSnap's image text tool.
Visit pdfsnap.github.io and select the Image Editor or Add Text to Image tool from the image tools section.
Click "Select Image" or drag in your JPG, PNG, or WebP file. Your photo appears on the canvas ready to edit.
Tap anywhere on the image to place a text box. Type your caption, label, or message. You can add multiple text layers on the same photo.
Adjust the font, size, colour, and alignment. Add a background fill or drop shadow for readability on busy backgrounds.
Click "Download" to save as JPG or PNG. No watermarks, no quality reduction, no account needed.
All editing happens 100% in your browser. Your photos are never uploaded to any server, making this safe for personal, private, or sensitive images.
White text on a dark photo, dark text on a light photo. For mixed backgrounds, add a semi-transparent rectangle behind your text, or use a text shadow to separate the words from the background.
Bold sans-serif fonts (like Impact) work for headlines and memes. Script fonts suit wedding and event cards. For business use, stick to clean fonts like Inter, Roboto, or Helvetica.
Keep text short and punchy. Long paragraphs on photos are hard to read. Use 1–2 lines of large text for maximum visual impact — especially for social media.
Centre alignment works for most captions. Bottom-left placement mimics professional news graphics and documentary subtitles. Avoid placing text over the main subject's face.
PDFSnap's image text tool is fully touch-optimised. On mobile:
No app download needed — just open your mobile browser, go to PDFSnap, and start editing. Works on Chrome, Safari, Firefox, and Edge on both Android and iPhone.
Captions · Labels · Memes · Business overlays
No signup · No watermark · Works on iPhone & Android
Contrast is everything. Text must be legible against the underlying image. White text on a light sky is invisible. Add a semi-transparent colour band behind the text, apply a text shadow, or choose a part of the image where the background is consistently dark or light. Never assume the image will cooperate — ensure contrast actively. Use two fonts maximum. A bold heading font plus a clean body font covers every use case. More than two fonts looks amateur. Letter spacing for headings. Adding slight extra tracking (0.05–0.1em) gives large headings more presence and improves legibility. Line height for body text. Set line height to 1.4–1.6× the font size for multi-line text — tighter looks cramped, wider looks scattered.
PDFSnap's text-on-photo tool works fully in mobile browsers with touch-optimised controls. For iOS, Apple's built-in Markup tool (accessible via the share sheet on any photo) lets you add text and annotations quickly without an upload — limited in typography options but convenient. For Android, Google Photos includes a basic text overlay tool in its editor, and Samsung's gallery editor offers more capability for Samsung device owners.
For businesses: product images with price overlays, promotional banners with offer text, event announcements with date and location, branded Instagram posts with call-to-action overlays. For personal use: photo birthday cards with names and messages, travel photos with location captions, memes, motivational quote graphics, personalised gifts where you supply the image with text already embedded. For content creation: infographics with data labels, step-by-step tutorial images with numbered callouts, before-and-after comparisons with section labels, and diagram annotations.
Font choice is the single variable that most distinguishes professional-looking text overlays from amateur ones. A few guidelines help narrow the decision.
For social media quote graphics and motivational content: Clean sans-serif fonts with a strong, simple character — Montserrat, Poppins, Inter, or Raleway — work well. They read clearly at small sizes on a phone screen and carry a contemporary feel. Avoid decorative script fonts for anything beyond a single short line, as they become illegible quickly.
For business and professional overlays — product pricing, event details, promotional offers: a bold weight of a neutral sans-serif (Helvetica Neue Bold, DM Sans Bold) paired with a lighter weight for secondary text creates visual hierarchy that guides the reader's eye from the most important information downward.
For personal photos and lifestyle content: Elegant script fonts (Great Vibes, Pacifico, Dancing Script) work well for names, dates, and one-line captions where the decorative quality adds emotional weight. Use these sparingly — one element in a script font, everything else in a complementary sans-serif.
Accessibility consideration: If the text-annotated image will be shared with a broad audience, choose fonts that are readable by people with dyslexia. Fonts with clear letter differentiation (distinct g, a, l, I characters), adequate letter spacing, and medium weight perform significantly better for accessibility than thin or highly decorative typefaces.
After adding text to your photo in PDFSnap, download the result as a JPEG for sharing on social media and messaging apps, or as a PNG if you need to preserve sharp text edges or if the image has a transparent background. For images that will be printed — a birthday card, a poster, a canvas print — download at the highest available quality setting and verify the dimensions are large enough for the intended print size at 300 DPI.
📚 Related ArticlesMohammad specialises in document workflows and image processing tools. He has tested hundreds of free online utilities so you don't have to, and writes practical, no-fluff guides to help you get things done faster.