At our Tech Café we often get questions like:
- “How do I save a picture from a website?”
- “Why does the picture I emailed turn into a little thumbnail?”
- “How can I share something when right-click doesn’t work?”
This page is all about understanding the basics — and a few of the quirks — of downloading and sharing pictures. The same skills apply to many other things: PDFs, documents, and even short videos.
1. Why Download and Share?
We share things for lots of reasons: to save a memory, to circulate a flyer, or to send something funny to a friend. But there are also responsibilities:
- Respect copyright and privacy (don’t assume every picture is free to copy).
- Think before sharing (would the recipient want/need this?).

2. Starting Simple: Chrome on Windows
On the U3A Box Hill website, right-click a picture and explore the menu:
- Save image as… → stores the file on your computer.
- Copy image address → copies a link (which may or may not work later).
Try pasting the link into an email to see what happens. Sometimes it works, sometimes the recipient just sees an error.
3. Exploring Social Media (Facebook Example)
Facebook adds another layer:

- Small preview vs maximised image → the quality of what you download can differ.
- Copying the link may not work outside Facebook (because it requires login).
Lesson: Maximise first if you want the best copy.
4. Understanding Links
Not all links are equal:
https://…= a standard web address.blob:…ordata:…= temporary addresses that often don’t work when shared.
This is why some copied links work fine, while others only work for you.
5. Options for Sharing
When it comes to sharing a picture (or any other digital object), there are two main approaches:
- Send the file itself
- Attach it to an email.
- The recipient gets a copy of the actual file.
- Send a link
- Copy and paste a web link into your message.
- The recipient can click to view it in their browser.
- They see the content “where it lives” online.
You can also upload a file directly into Facebook, WhatsApp, Messenger, or another app. However, the app my change the size and quality of the image.
Sharing the File (Attachment/Upload)
Pros:
- ✅ The recipient has a reliable, permanent copy of the image.
- ✅ Works without internet access later (once downloaded).
- ✅ Useful for high-quality images or originals (e.g. photos, flyers, scanned documents).
- ✅ Safer if the online source is temporary or might change.
Cons:
- ❌ File sizes can be large — some email systems block big attachments.
- ❌ If sent in certain apps, images may be compressed to save bandwidth (reducing quality).
- ❌ Multiple versions can get out of sync — if you send Version 1, but later update the flyer, your friend won’t see Version 2 unless you resend it.
Sharing a Link
Pros:
- ✅ Lightweight — no large files clogging up email.
- ✅ Always up to date if the source changes (e.g. online flyer or timetable).
- ✅ Can provide context — the recipient not only sees the image but the whole web page with explanations, background info, and related links.
- ✅ Easy for multiple people to access the same item without duplication.
Cons:
- ❌ Some links expire or stop working (temporary “blob” links, private folders).
- ❌ Recipient may need the right account/login (e.g. Facebook, Google Drive).
- ❌ The website may later change or remove the picture.
- ❌ The recipient may see ads or clutter around the picture.
- ❌ Links can be unsafe if you don’t trust the site (malware, scams).
Rule of Thumb
- If quality and permanence matter → send the file.
- If size, context, or “always up to date” matters → send the link.
6. Drag-and-Drop Pitfalls
Drag-and-drop feels easy, but what actually happens depends on two sides:
- The source (the website or app you’re dragging from — it decides what data is “offered”).
- The destination (your email client or app — it decides what to accept).
If they don’t agree, surprises happen.
Common outcomes:
- You get a thumbnail instead of the full image.
- You send a link (e.g. Facebook “blob.jpg”) that doesn’t work for the recipient.
- In Yahoo Mail, users have reported that an image looked fine while composing, but after sending it turned into a small thumbnail or even just text like
<blob.jpg>.
Safer case:
Dragging from a local folder (e.g. your Downloads or Pictures) almost always works — because it’s a real file.
Investigations you can try:
- Gmail vs Yahoo
- Drag an image from a website into a Gmail draft, then send it to yourself.
- Do the same in Yahoo Mail. Compare what arrives.
- Web vs Local
- Drag the same image first from a website, then from your Downloads folder, into an email.
- Notice the difference between a link and a true file.
- Preview vs Reality
- Send yourself an email with a dragged-in image. Open it on another device.
- Did the image survive, or shrink to a thumbnail?
Takeaway: Drag-and-drop is handy, but not always reliable. When in doubt: download first, then attach.
In the example below, a reasonably large image was presumably sent by email but what arrived was a tiny, unusable image:

Tip:
For email, use a BCC to yourself to get a better idea of what recipients of your email will see. Ideally create an alternative email account from a different provider for this purpose.
7. Advanced Tricks
Sometimes right-click is blocked on websites. What to do?
- Use a browser extension to re-enable right-click.
- If all else fails: maximise the picture and take a screenshot (or even record video).
8. Homework Exercises
- Save a U3A Box Hill image and email it to yourself.
- Copy a link to an image and paste it into a Word document.
- Try drag-and-drop in Gmail and Yahoo Mail — compare what happens.
👉 Key Takeaway
Downloading and sharing pictures is simple once you know the traps. Always double-check what you’re actually sending — and when in doubt, save the file first, then attach.