Pitch Deck Attachment or Link: Why Founders Should Send a Link

For years, founders have been advised to send pitch decks as links rather than attachments. Yet I still see founders attach PDFs to cold emails, and I still hear investors ask for them. So it’s worth being clear about what each option actually gives you.

The case for attachments

Attachments are simple. The investor gets the file immediately, can read it offline, and doesn’t need to click through to another site. Some investors prefer them for exactly those reasons, and a few feel strongly about it.

For a founder, attachments feel easy because email is always open and dragging in a file takes a second. That ease is real, but it only lasts until the moment you hit send.

What you give up with an attachment

You can’t update it. Pitch decks change during a raise, sometimes daily. Every attachment you send is frozen at that moment. If you fix a number or add a customer next week, everyone who received the old version still has it, and you can’t reasonably ask each investor to swap it out.

You don’t know if it was opened. An attachment disappears into an inbox. You won’t know whether the investor read it, skimmed it, or never looked.

You lose track of where it goes. Investors forward decks to partners and to other investors. With an attachment, you have no idea who ends up with your deck or which version they’re reading.

It multiplies versions. If you follow up with more materials, each new email adds more files to track. After a few rounds, neither you nor the investor is sure which documents are current.

What a link gives you

A good sharing link fixes each of those problems. You can replace the deck behind the link without changing the link itself, so every recipient always sees your latest version. You can see who opened it, which documents they viewed, and how long they spent. You can add supporting documents to the same link as the conversation progresses. And you can make the page do more than display a file: add your branding, a meeting booking button, an FAQ, a feedback button, or an AI chatbot that answers investor questions.

In short, an attachment is a file. A link is a channel you keep control of.

What if an investor insists on an attachment?

It happens. Some investors have a firm policy, and some simply don’t like clicking links from people they don’t know. I’ll be honest about my view: when an investor insists on an attachment, it can signal a preference for a one-way relationship, where they get your materials and you get no visibility into what happens next. That’s their right, but you deserve to know how your materials are used, and it’s reasonable to explain why you’d prefer a link.

The practical approach is simple. Send the link first, with one sentence explaining the reason: “I use a link so you always have the most current version of the deck.” Most investors accept that immediately. If one still asks for a PDF, send it. A raise is not the place to win an argument about file formats. Investors are people, and the startup world is small. The investor you’re emailing today may lead your next round, and how you handle small moments like this one is part of that longer relationship.

Should you let investors download your deck?

For early outreach, I generally recommend allowing downloads. Your goal at that stage is visibility, and some investors like to save decks for later reading. Blocking downloads can feel unfriendly to an investor who hasn’t met you yet. For more sensitive materials later in the process, such as detailed financials, a good sharing tool should let you restrict downloads when it matters.

How to send your pitch deck by email

A strong first email is short: a few sentences that give an investor a reason to take the meeting, followed by the link to your deck. Don’t try to explain the whole company in the email. That’s what the deck and the follow-up conversation are for.

Sharing pitch decks with DocChief

DocChief lets you share your deck through one link that you can update anytime without breaking it. You control whether the link is public or restricted to specific email addresses, whether downloads are allowed, and when access ends. You’ll see who opened your deck, what they viewed, and what questions they asked the embedded chatbot, and investors can book a meeting or send feedback without leaving the page.

Related guides

Pitch Deck Sharing: The Complete Guide for Founders
How to Update Your Pitch Deck After You’ve Already Sent It
Should Investors Be Able to Download Your Pitch Deck?