You marked up a plan. Now you want your architect to see it, answer your questions, and add their own remarks. You don't want to send them a Hemma account, you don't want to give them access to your invoices, and you don't want to start a new email thread with screenshots. Sharing solves all three. One plan, one link, full collaboration.
When you share a plan, Hemma generates a secure link tied to your architect's email address. They open it, confirm their email, and get a view of that one plan: your annotations, the document itself, and a place to reply.
That is everything they get. No access to your other plans. No view of your budget. No window into your contractors or invoices. The share is scoped to a single plan, and the rest of your project stays private.
Open the plan you want to share, then look for the share option in the plan view. Enter your architect's email address, and Hemma sends them an invitation the first time. Their access does not expire, and you can see and change which plans they can open on the Architects screen in Settings. You can revoke it at any time. If the invitation email could not be sent, the architect's card on that screen says so and offers Send invitation again.

Use the email address your architect already gives out professionally. Hemma uses it to verify them on every visit, so a stable address keeps things friction-free.
Your architect receives an email with a link. When they click it, Hemma asks them to confirm the email address. A quick safety step that means no one else can use the link if it gets forwarded. Then they enter their name, agree to terms, and the plan opens.
What they see:
What they don't see:

Architects use the same annotation tools you do. They can:
Everything they add carries their name, so you can always tell who said what. Annotation tools explains what each tool is for.
Adding plans is off by default. In Settings, Architects you can switch on Can add plans for an architect. Switching it off later stops new plans; the ones they already added stay in your project. If you end an architect's access and invite them again, it starts switched off. With it on, your architect sees Add a plan on the project page in Shared with you. They pick a PDF or a photo (up to 10 MB each), Hemma reads it like any plan you add yourself, and it opens for comments right away. It counts towards your project, and you can remove it like any other plan. Everyone on the project gets one email when they have added plans, not one per plan: it arrives a couple of minutes after they stop adding, in each person's own language.
Every reply, from either side, triggers an email to the other people on the annotation thread. Your architect replies and you get a notification. You reply and they get one. Nobody has to log in just to check whether anything changed.
Inside Hemma, new replies show up with an unread indicator on the annotation card. You can scan the sidebar at a glance and see exactly where the conversation has moved.
After your architect has opened a first link, they don't need the links in your emails any more. When they sign in to Hemma, they land on a page called Shared with you: every project that someone shared plans from, with what is new for them on top (new comments, plans they haven't opened yet) and the links that expire soon. They open a project to see its plans, search by plan name or by a word from a comment, and go back to the project from any plan.
A plan you shared by email shows up there too before they have opened it, marked Not opened yet. Once a link has ended (you revoked it, or it expired), the plan stays listed as Link ended, with a note to ask you for a new one. Plans you gave access to through Architects work differently: a plan you take out of the selection disappears from their page, and if you end their access the project shows as Access ended, with no plans listed.
If the project is finished, the share is no longer needed, or you simply changed your mind, you can revoke the link from the same place you created it. Revoke is immediate. The next time your architect tries to open the plan, they see a notice that access is no longer available.
The annotations and replies they added stay on the plan. Revoking access does not delete the conversation. It only stops new visits.
The old way: forward a PDF, attach a screenshot, write a paragraph explaining what to look at, hope the reply lands in the same thread, lose track when the next plan revision arrives. The new way: one link, one document, one conversation that stays attached to the drawing.
Your plan stays the source of truth. Your architect joins the conversation. The thread stays in one place.