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Filed by Adobe Systems Incorporated Pursuant to Rule 425
Under the Securities Act of 1933
And Deemed Filed Pursuant to Rule 14a-12
Under the Securities Exchange Act of 1934
Subject Company: Macromedia, Inc.
Commission File No. of Subject Company: 000-22688

The following FAQ was posted on Adobe Systems Incorporated's website on April 18, 2005:


ADOBE—MACROMEDIA ACQUISITION ANNOUNCEMENT
Frequently Asked Questions

        On April 18, 2005, Adobe Systems Incorporated (Nasdaq: ADBE) announced a definitive agreement to acquire Macromedia (Nasdaq: MACR) in an all-stock transaction valued at approximately $3.4 billion.

GENERAL

Why is Adobe acquiring Macromedia?

        Adobe's mission has always been to help people and businesses communicate better. Macromedia's mission has been to provide a rich media experience. Together, we share a vision for the future and with the combination of the two companies—our products, technologies and people—we will enable the creation and delivery of compelling content and experiences across multiple operating systems, devices and media.

Why are the companies joining now?

        Both companies are experiencing great success and momentum and have great opportunities ahead of them, and believe that together, they will be better able to achieve their combined vision with greater synergy. We also believe the joining of two healthy companies will lead to a more successful combined company.

What is the mission of the combined company?

        Adobe's mission remains the same—to help people and businesses communicate better. With the acquisition of Macromedia, Adobe strengthens its mission through the combination of leading-edge development, authoring and collaboration tools—and the complementary functionality of PDF and Flash. Going forward, the combined company has the opportunity to define a robust technology platform that delivers compelling, rich content across a wide range of devices and operating systems. Together we offer a broad set of products and benefits for customers:

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        By combining the passion and creativity of two leading-edge companies, Adobe will continue driving innovation that is changing the way people everywhere experience and interact with information.

What do you see as the opportunities for the combined company going forward? Did something change in how Macromedia perceives its standalone business opportunity?

        Macromedia sees this as an opportunity to accelerate and expand its business models. Working as one team, Adobe and Macromedia see the opportunity for greater focus on delivering a compelling and industry-defining technology platform to meet a broader range of customer needs.

Is this a merger or an acquisition?

        Adobe is acquiring Macromedia. However, both companies will benefit greatly from joining forces. Macromedia's stockholders will own 18 percent of the combined company on a pro forma basis.

What will be the name of the combined company?

        Adobe Systems Incorporated.

How many employees does Macromedia have?

        Macromedia has approximately 1,450 employees worldwide.

How many employees does Adobe have?

        Adobe has approximately 4,000 employees worldwide.

What is the combined revenue of the two companies?

        On a pro-forma trailing reported four quarter basis, the combined companies would have generated in excess of $2.1 billion in revenue. We are not providing forward-looking financial targets for the combined company today.

Who proposed this acquisition—Adobe or Macromedia?

        With the recent success and strong momentum of both Macromedia and Adobe, the CEOs of each company agreed that this was an excellent time to combine forces. Together, we have the opportunity to create an industry-defining technology platform that delivers compelling, rich content across a wide range of devices and operating systems.

TRANSACTION DETAILS

How much is Adobe paying for this transaction? What are the terms of the acquisition? Is this a stock or cash transaction?

        Under the terms of the agreement, Macromedia stockholders will receive, at a fixed exchange ratio, in a tax-free exchange, 0.69 shares of Adobe common stock for each share of Macromedia common stock. Based upon Adobe' closing price on Friday, April 15, 2005 this will represent a price of $41.86 per Macromedia share.

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What will be the composition of the stockholder base for the combined company?

        Macromedia's stockholders will own approximately 18 percent of the combined company or a pro forma basis.

When is this transaction expected to close?

        We expect the transaction to close by Fall (fourth quarter of calendar year 2005).

How will the transaction be accounted for? When will the transaction turn accretive?

        The transaction will be accounted for under the purchase accounting method. We expect the transaction to be break-even to slightly accretive to earnings in the first 12 months post close on a non-GAAP basis. Due to the absence at this time of estimates of the acquisition-related restructuring costs and the allocation of the purchase price between goodwill, in-process R&D, other intangibles and equity-based compensation expenses related to SFAS 123R, we are currently unable to provide GAAP estimates for future earnings. The company's target of break-even-to-slightly accretive to earnings on a non-GAAP basis assumes no adverse impact from the loss of deferred revenue in the first twelve months following the close due to purchase accounting.

What does "accretive" mean?

        In this type of transaction, accretive refers to the point at which the acquisition begins contributing positively to the EPS (earnings per share) of the acquiring company.

How much cash will the combined entity have?

        The balance sheets of both companies are strong. Combining the two, based on most recently reported quarters, shows cash and short term investments which exceed $1.8 billion.

Will this transaction impact guidance for the remainder of each company's fiscal year?

        There is no new guidance for either company. On April 18, 2005, Adobe provided its quarterly Q2 intra-quarter update and indicated that the company expects to achieve the high end of the revenue and EPS range. On April 18, 2005, Macromedia issued a press release commenting on its fourth quarter fiscal year 2005. Macromedia will announce its final fourth quarter fiscal and full year fiscal 2005 financial results on May 3, 2005 after close of market. Please see the companies' respective press releases of April 18, 2005.

What will be the fiscal reporting calendar for the combined company?

        Until the transaction is complete, Adobe and Macromedia will maintain their current fiscal reporting practices. Upon close, the combined company will operate on Adobe's fiscal calendar. Adobe's fiscal year 2005 closes on December 2, 2005, and its fiscal year 2006 begins the following day.

What is required to close the transaction?

        Stockholders of both companies must approve the deal. In addition, the transaction must obtain customary regulatory approvals.

How confident are Macromedia and Adobe that this transaction will go through?

        Both Adobe and Macromedia expect the transaction to close. The Boards of both companies have approved the deal. Completion of this type of transaction is subject to customary closing conditions, including obtaining regulatory approvals and the approval of Macromedia and Adobe's stockholders.

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And while it is customary for a transaction of this magnitude to be evaluated, we do not anticipate any problems with regulatory approvals. That said, there are always risks involved in transactions of this size.

COMPANY ORGANIZATION

What will the management structure of the combined company be?

        Bruce Chizen will be the chief executive officer of the combined company. Shantanu Narayen will be the president and chief operating officer reporting to Chizen. Macromedia's current chief executive officer, Stephen Elop, will be president, Worldwide Field Operations also reporting to Chizen. In this role, Elop will be responsible for Adobe's sales, field marketing, professional services, sales operations, customer service and technical support. Murray Demo will be executive vice president and chief financial officer reporting to Chizen. Additionally upon close of the transaction, we anticipate other members of Macromedia's senior management will be joining the combined company in key leadership positions.

Will there be any changes to Adobe's Board of Directors?

        Dr. John Warnock and Dr. Charles Geschke will remain as Chairmen of the Board of the combined company. Rob Burgess, Chairman of the Macromedia Board, will join the Adobe Board of Directors.

Will Macromedia become its own business unit or will it report into existing organizations within Adobe?

        Macromedia will not be a stand alone business unit once the transaction is completed. Organizational structure will be evaluated by the integration team with recommendations made to the executive steering committee, and will take effect upon close of the transaction. Until close of the transaction, both Adobe and Macromedia will continue to operate as independent companies.

Do you anticipate a reduction in force as a result of this transaction?

        When two successful growing companies join together, the result is a combined organization that creates new and exciting opportunities. The combination will lead to powerful new areas of innovation, new products and solutions, and an acceleration of our respective growth agendas. At the same time, there will be some duplication of employee functions between the two companies, and upon the close of the transaction, we anticipate some level of reduction in force. While we anticipate the integration team will identify opportunities for cost savings, the primary motivation for this acquisition is to continue to expand and grow our businesses into new markets.

Will all the reductions in employees come from one company or the other, or both companies?

        Any potential reductions will be carefully considered and are likely to impact both organizations.

Where will the company's headquarters be based?

        Headquarters for Adobe will remain located in San Jose. Macromedia's 601 Townsend facility in San Francisco will remain a key campus for the combined company.

Adobe and Macromedia both have offices in several of the same cities. Which offices will remain open? Will there be office closures?

        Where it makes sense, we anticipate the combined company will consolidate facilities as appropriate. Between now and close of this transaction, the integration team will review the worldwide

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locations of both companies and make recommendations to the integration steering committee regarding future plans based on our hiring plans and location of our customers.

PRODUCT/SOLUTIONS

What opportunity is Adobe addressing with the acquisition of Macromedia?

        Together, Adobe and Macromedia will meet a wider set of customer needs by integrating products and technologies. We have significant opportunity to grow into new markets, particularly around mobile and enterprise customers. Our combined opportunities will allow us to better achieve our goals of:

What are the benefits of the combined product lines?

        Many of our customer segments are complementary and in many cases customers in those segments are using products from both companies. The combined company will be able to offer increased productivity through streamlined workflow and tighter integration. However, until the close of the transaction, the companies will continue to operate their respective businesses as usual.

Over what period of time will the expected benefits be realized?

        We anticipate some benefits will be realized shortly after the deal closes and we expect others may take several product cycles.

Will planned product releases for Macromedia or Adobe be affected?

        We do not anticipate any changes with respect to our ongoing business plans.

Will this affect the planned release of Macromedia Studio MX later this year?

        No.

What happens to the Macromedia brand?

        Adobe recognizes the strong equity of the Macromedia brand. That said, it makes great business sense for a company the size of the combined company to align behind a single corporate brand. Over time, Macromedia products will transition to the Adobe brand. Adobe expects to keep and continue investing in key Macromedia product brands.

Are there areas of duplication in product lines? If so, how will that be addressed?

        Adobe and Macromedia are committed to serving the needs of our combined customers. The companies are largely complementary, and thus the amount of competition between us is limited. Post closing, we believe the industry will remain as dynamic and competitive as it is today. Until the close of transaction, the companies will continue to operate business and usual. The combined company will not be able to create a joint product roadmap until after the transaction is closed.

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Do you expect to integrate the FlashPlayer and the Adobe Reader?

        The complementary functionality of FlashPlayer and Adobe Reader will enable the deployment of a more robust cross-media, rich-client technology platform. The combined company will continue to be committed to the needs of both the FlashPlayer and Adobe Reader users.

How will Macromedia FlashPlayer be affected?

        The core tenets behind the success of the FlashPlayer will remain the same—a small download, high performance, and ubiquity.

How will Adobe Reader be affected?

        The core tenets behind the success of the Adobe Reader will remain the same: ubiquity, ease of use, reliability and ease in viewing, printing, and searching PDF documents on a variety of operating systems and devices.

Is the combined company committed to Flash as a development platform?

        Yes. Macromedia has made tremendous progress in attracting developers to Flash, and the Flash platform will be a key component of the combined company's strategy going forward.

How does this affect Adobe's support of SVG (scalable vector graphics)?

        Both Adobe and Macromedia have been involved in defining SVG and both were part of the W3C working group that defined SVG. The combined company will continue to work with customers and partners to define a future roadmap for our products.

How important is mobile to the combined company?

        Mobile is a huge new market opportunity for the combined company. Macromedia has demonstrated significant momentum with key partners like Nokia and Samsung and the combined company will accelerate this new business.

Customers, Partners and Developers

Why is this good for customers?

        This transaction will benefit customers across all segments the two companies serve—creative professionals working with web, print, and video; application developers; business users and enterprises; the mobile ecosystem, hobbyists and consumers. Combining the passion, creativity, and operational excellence of two leading-edge companies, will allow us to better serve customers by accelerating innovations that change the way that people everywhere are experiencing and interacting with information.

What does this mean for Macromedia's and Adobe's business partners?

        Together, Adobe and Macromedia will meet a wider set of customer needs by integrating products and technologies. The combined company has significant opportunity to grow into new markets, particularly around mobile and enterprise solutions. Our combined technology platform will allow us and our partners to provide solutions for customers who want to create, manage and deliver reliable, secure and interactive information, communications and applications.

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Macromedia has worked hard to build a developer community around its products. Will the combination of Adobe and Macromedia change that?

        No. As the combined company works to build a technology platform, developers and designers are critical to our success. We look forward to working with all of our partners to realize our combined vision.

Will Macromedia continue to use blogging as a way to communicate with partners and customers?

        Until the close of the transaction, the companies will continue their current communication practices. Communicating directly with customers is a core value the combined company expects to maintain.

Will any products be eliminated or phased out as a result of this transaction?

        Adobe and Macromedia are committed to serving the needs of our combined customers. The companies are largely complementary, and thus the amount of competition between us is limited. Post closing, we believe the industry will remain as dynamic and competitive as it is today. Until the close of transaction, the companies will continue to operate business and usual. The combined company will not be able to create a joint product roadmap until after the transaction is closed.

How can I get more information about this transaction?

        Adobe and Macromedia will provide updates via the Adobe/Macromedia Acquisition website as information becomes available at www.adobe.com/aboutadobe/invrelations/adobeandmacromedia.html.

What do I do if I have questions regarding this transaction?

        Please reference the Adobe/Macromedia Acquisition website at www.adobe.com/aboutadobe/invrelations/adobeandmacromedia.html for information on how to submit questions regarding this transaction. We will collect questions and provide periodic updates to the FAQ.

Should Macromedia customers continue to call Macromedia for support of their products?

        Yes. Macromedia customers should continue to contact Macromedia support for Macromedia products and solutions. Until this transaction is closed, Macromedia and Adobe remain independent companies and will continue to operate their respective businesses as usual.

How long will training and support be available for Macromedia products?

        Adobe is committed to Macromedia customers and believes both training and support are critical components of providing a complete customer solution. The combined company does not expect a change in this philosophy.

What do I do if I want to purchase, get support, or be trained on a Macromedia product?

        Please visit the Macromedia home page at www.macromedia.com.

When will customers know who will be managing their account?

        After close of the transaction, customers will be notified if there are any changes to their account teams. Until the close of transaction, the companies will continue to operate their respective businesses as usual.

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INTEGRATION

How do the cultures of the two companies compare?

        Both companies share a passion for innovation and a commitment to developing and delivering customer-driven software. While there are always differences in company cultures, we feel this combined company will be a stronger organization because of its diversity.

How will the integration process of the two companies be managed?

        Adobe has a well defined process for managing integration, based on industry best practices. Integration planning will begin immediately, while integration implementation will not begin until the acquisition is closed.

        The integration process will be managed by the Integration Program Office, consisting of one Integration Lead from each company. The Integration Leads will be Jim Briody, Adobe vice president Corporate Services, and Betsey Nelson, Macromedia executive vice president and CFO.

        The Integration Program Office will be overseen by the Integration Steering Committee, consisting of: Bruce Chizen, CEO Adobe; Stephen Elop, president and CEO, Macromedia; Shantanu Narayen, president and COO, Adobe; Murray Demo, executive vice president and CFO, Adobe; and Theresa Townsley, senior vice president, Human Resources, Adobe. Shantanu Narayen will serve as chair of the Integration Steering Committee.

        Additionally, Adobe has secured the services of Webb McKinney, a seasoned technology industry executive with years of acquisition integration experience, in an advisory capacity to the Integration Program Office and Integration Steering Committee. McKinney recently retired from HP where he was an executive vice president, and is now in an executive consulting role with Deloitte & Touche LLP.

Additional Information and Where to Find It

        Adobe Systems Incorporated intends to file a registration statement on Form S-4, and Adobe and Macromedia, Inc. intend to file a related joint proxy statement/prospectus, in connection with the merger transaction involving Adobe and Macromedia. Investors and security holders are urged to read the registration statement on Form S-4 and the related joint proxy/prospectus when they become available because they will contain important information about the merger transaction. Investors and security holders may obtain free copies of these documents (when they are available) and other documents filed with the SEC at the SEC's web site at www.sec.gov. In addition, investors and security holders may obtain free copies of the documents filed with the SEC by Adobe by contacting Adobe Investor Relations at 408-536-4416. Investors and security holders may obtain free copies of the documents filed with the SEC by Macromedia by contacting Macromedia Investor Relations at 415-252-2106.

        Adobe, Macromedia and their directors and executive officers may be deemed to be participants in the solicitation of proxies from the stockholders of Adobe and Macromedia in connection with the merger transaction. Information regarding the special interests of these directors and executive officers in the merger transaction will be included in the joint proxy statement/prospectus of Adobe and Macromedia described above. Additional information regarding the directors and executive officers of Adobe is also included in Adobe's proxy statement for its 2005 Annual Meeting of Stockholders, which was filed with the SEC on March 14, 2005. Additional information regarding the directors and executive officers of Macromedia is also included in Macromedia's proxy statement for its 2004 Annual Meeting of Stockholders, which was filed with the SEC on June 21, 2004, and Macromedia's proxy statement for a Special Meeting of Stockholders, which was filed with the SEC on October 6, 2004. These documents are available free of charge at the SEC's web site at www.sec.gov and from Investor Relations at Adobe and Macromedia as described above.

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