Once the file lands in an inbox, all control ends. No updates, no expiry, no visibility on opens.
PDF Sharing Methods
Attachment = loose copy
Hosted link = one source
Link + QR = both channels
Three ways to share a PDF — and when each one fits.
Email attachment, hosted link, and link+QR are all valid options. Understanding where each one breaks down helps you pick the right approach before the share is already out.
An attachment is a copy you lose control of the moment it leaves your outbox. A hosted link keeps the file, the rules, and the records together on one page. Adding QR to a hosted link means the same share works for print and digital at the same time.
Attachment
Hosted link
Link + QR
The PDF lives on a single hosted page with rules and records attached. The link can be updated or expired at any time.
The same share surfaces as a clickable link for digital use and a scannable QR for print — one upload, one record trail.
No app needed
Rules before sending
Records after sending
QR + link together
One share, two surfaces
Use the same hosted PDF for email links, mobile scans, printed handouts, or slide embeds.
Rules stay attached
Expiry, open limits, and email verification travel with the link — not as a separate instruction you hope readers follow.
Comparison
Attachment vs Hosted link vs Link+QR
Eight dimensions where the three methods diverge. The right choice usually depends on how much control and visibility you need after the document leaves your hands.
| Dimension | Email attachment | Hosted link | Hosted link + QR |
|---|---|---|---|
| Control after sending | None. File is a copy; you cannot revoke, update, or expire it once sent. | Full. Expiry, open limit, and verification rules apply until you remove them. | Same as hosted link. Rules apply to both link and QR opens equally. |
| Update without resending | Not possible. Must re-send a fresh attachment to every recipient individually. | Yes. Replace the file on the hosted page; existing links serve the new version. | Yes. The QR still points to the same page, so scanning returns the updated file automatically. |
| QR code available | No. Attachment has no associated QR by default. | Not automatically, but the hosted URL can be converted to QR separately if needed. | Yes. QR is generated alongside the link from the same share result page — no extra steps. |
| Access records | None. No signal on whether the file was opened or forwarded. | Full log of opens, timestamps, and (with email verification enabled) reader identities. | Same log. QR scans and link opens appear in the same unified access record trail. |
| Expiry control | Not available. The file stays in the inbox indefinitely. | Set a specific date or open count limit before or after sharing. | Same. Printed QR codes become inactive when the share expires — no need to recall physical copies. |
| Reader install required | Depends on device; PDF reader software may be needed to open the file. | No. Any standard browser opens the hosted PDF page directly without plugins. | No. QR opens the same browser page — phone camera is enough to scan and view. |
| Distribution channels | Email only by default. Using in print or chat requires extra conversion steps. | Paste in email, chat, slides, or any text field. Link format works everywhere. | All link channels plus physical print, posters, event badges, and screens for scanning. |
| File size limit risk | Many mail servers reject attachments over 10–25 MB, blocking delivery. | The file is hosted; the share link is tiny and never blocked by mail size limits. | Same. The QR encodes a short URL, not the file itself — no size issues. |
An attachment is appropriate when you want a permanent local copy delivered — for example, an invoice the recipient must archive on their own system.
A hosted link is the right default when you want visibility, control, or the ability to update the document after sending.
Adding QR to the hosted link costs nothing extra and opens up print and in-person distribution — a sensible default for most hosted shares.
Workflow
How the hosted share workflow works
Four steps from raw file to controlled, trackable share — with the link and QR ready for any channel.
1
Upload the PDF
Drop the file into MaiPDF. It becomes the single source for all subsequent shares — no copies scatter across devices or inboxes.
2
Set access rules
Choose an expiry date, an open-count cap, require email verification, or restrict the view to fence mode — all before the link is published.
3
Get link + QR
The share result page shows both a clickable link and a QR code pointing to the same hosted PDF. Send via email, paste in a slide, or print the QR on physical material.
4
Check access records
Use the reading code to review the open log any time after sharing. Timestamps, open counts, and verified reader emails (if enabled) are all recorded.
Why hosted beats attachment for ongoing sharing
An attachment creates an independent copy the moment it arrives in the recipient's inbox. After that point, you have no way to update the content, revoke access, or see if it was ever read.
- A hosted PDF can be updated without re-sending — the existing link stays the same.
- Expiry rules stop access automatically on a date you control, not when the recipient decides to delete the email.
- Access records let you see if the share was opened at all — useful before chasing a follow-up with a prospect or client.
- If the file is large, a hosted link sidesteps mail server size limits that block attachment delivery.
- QR output from the hosted share lets you reach print audiences without any extra conversion workflow.
- A single share link works across email, chat, SMS, embedded in a webpage, or printed as QR on any surface.
Use Cases
When to use each sharing method
Six common scenarios matched to the sharing approach that fits them best — and why.
Attachment
Quick one-to-one send
You need to get a short reference document to a single trusted colleague who genuinely wants a permanent copy on their device. An attachment is the fastest path — no setup, no hosted page, no access rules needed for a simple handoff.
Hosted link
Sales proposal or pitch deck
You want to know if the prospect opened the proposal before you follow up. A hosted link gives you an open notification via access records. You can also expire it after the deal closes to prevent stale version problems from old links being forwarded around.
Link + QR
Event flyers and printed handouts
A product brochure or event program needs to reach both digital inboxes and physical surfaces like tables, posters, and badge holders. Link+QR handles both from a single upload — update the PDF once and every surface automatically reflects the change on the next open.
Hosted link
Classroom materials
A teacher shares a reading assignment with a class. A hosted link with an open-count limit prevents the link from being redistributed beyond enrolled students. If the content needs a correction mid-term, the teacher replaces the file without resending any emails.
Hosted link
Recurring monthly reports
A monthly analytics report goes to the same set of stakeholders each cycle. With a hosted link, the URL stays constant between editions — bookmark it once and it always opens the latest version after each file replacement on the share page.
Hosted link
Confidential documents with expiry
Legal briefs, HR documents, or financial summaries that should only be readable for a defined window. A hosted link with an expiry date stops access automatically — no manual follow-up required and no need to trust that recipients deleted their copy on schedule.
FAQ
Common questions about PDF sharing methods
Does the reader need to install anything to open a hosted PDF?
No. The PDF opens in any standard browser on any device — desktop, tablet, or phone. No app, plugin, or PDF reader software is required. The same applies to QR code opens: scanning with the phone camera is enough to open the hosted page.
Can I use both a link and a QR code for the same share?
Yes. MaiPDF generates both from the same share result page at no extra cost. They both point to the same hosted PDF, share the same access rules, and feed into the same access record trail — so you only manage one share, not two separate ones.
Can I track who opened the PDF via QR code?
Yes. QR opens are logged in the access records the same way link opens are. If you have email verification enabled, the reader's confirmed email address is recorded regardless of whether they arrived via link click or QR scan.
Can I change the access rules after the link is already shared?
Yes. Rules are attached to the hosted share, not encoded into the link itself. You can update expiry dates, open count limits, or verification settings at any time after the link is in circulation. Changes take effect immediately on the next open attempt.
What if I need to update the PDF content after sharing?
You can replace the underlying file on the hosted share without changing the link or QR code. Anyone who still has the link or QR will open the updated version on their next visit. No resending required, and no old-version confusion from stale attachment copies already sitting in inboxes.
Can I set an expiry date on the hosted share?
Yes. Set an expiry date before or after sharing. Once the date passes, the link and QR stop working automatically — including any printed QR codes already in circulation. You do not need to track who has copies or manually revoke access. Previous access records remain visible through your reading code.
What happens to the access records when a share expires?
The records are retained even after the share expires. You can still review open history, timestamps, and email addresses (if verification was on) through the reading code after the link has already stopped working for new readers.
When is an email attachment still the right choice?
An attachment makes sense when the recipient genuinely needs a permanent local copy — for example, an invoice they are required to store in their accounting system. If you do not need visibility, do not need to update the file, and have no reason to ever revoke access, an attachment is simpler than setting up a hosted share.
Can I prevent readers from downloading or printing the hosted PDF?
MaiPDF shows the PDF through a browser viewer instead of offering the raw file directly, which removes the obvious download pathway. Fence-view mode adds another layer by reducing screen-capture and copy opportunities. These are friction measures rather than absolute technical locks — for compliance-grade copy prevention, a dedicated DRM solution is worth evaluating in addition to any browser-based tool.
Start Here
Pick the method that fits, then share.
If you need control, records, or multi-channel distribution, a hosted link or link+QR is the right starting point. Upload once, set the rules you need, and send one share that covers every channel.