Guide Help

  • What is SwifDoo PDF?

    SwifDoo PDF is an all-in-one free PDF program with a set of features. It allows you to convert, annotate, edit, compress, merge, and split PDF documents at one swoop. With its user-friendly interface and easy-to-use features, SwifDoo PDF can promote efficiency and productivity when you work with PDF documents.
  • Is SwifDoo PDF free?

    Yes, SwifDoo PDF is a free program on Windows 11, 10, 8, and 7. Every new user can get a 7-day free trial even without registration. If a longer free trial is all you want, just register a new account to enjoy a 15-day free trial. When the free trial expires, users can still access basic PDF services. For more information about plan comparison, please visit here for details.
  • What language does SwifDoo PDF support?

    SwifDoo PDF is now available in English. Though we support one language, for now, our application can view PDF documents of all languages. You can enjoy a pleasant and smooth reading experience with SwifDoo PDF regardless of the language of your PDF files. In the next few months, we will release French and German versions to reach more users.
  • What system does SwifDoo PDF support?

    SwifDoo PDF now only supports Windows systems. Make sure your computer is running any one of the Windows systems listed below:

    Windows® 11
    Windows® 10
    Windows® 8.1
    Windows® 7
    Windows XP®
  • Is SwifDoo PDF 32-bit or 64-bit compliant?

    SwifDoo PDF is both 32-bit and 64-bit compliant, which are combined in one installation package. SwifDoo PDF doesn’t have a 32-bit or 64-bit version respectively. The number of bits will be automatically selected depending on the system your computer uses when installing.
  • What are the system requirements of SwifDoo PDF?

    System & Hardware Requirements
    OS: Windows 11, 10, 8, 7, and XP (32 & 64)
    Processor: 1 Ghz processor or above
    Hard Drive Space: 150 MB or above
    RAM: 1 GB RAM or above
  • Can I use SwifDoo PDF online?

    SwifDoo PDF rolled out an online converter to facilitate file conversions. User can perform two conversions per day. Besides, when you share that page to social media for the first time, you will get another one free task. SwifDoo PDF Online Converter now can convert PDF to MS formats (Word, Excel, PowerPoint), images, CAD, and HTML.
  • How can I learn to use the new features in SwifDoo PDF?

    SwifDoo PDF’s blog is home to informative articles about how to access new features of the software. If you have any concerns about any new features, you can check them on this sector.
  • How do I download and install SwifDoo PDF?


    You can free download the latest version of SwifDoo PDF here on our homepage, navigation page or anywhere with the download button. Or, you can download SwifDoo PDF from Microsoft AppSource. We are the partner of Microsoft AppSource, Microsoft’s App Store. This is an online store providing business applications and services by industry-leading software providers.


    Follow the steps to install SwifDoo PDF.

    1. Click on the installer at the bottom of the window after successfully downloading the package;

    2. A standard notification window will pop up when installing. Select Custom Install and Browse to locate the program files. Tick I have read and agreed to the Service Agreement;

    3. Press Install Now to start installing. You can track the installation progress in the pop-up window;

    4. After the installation, click Start Now to launch SwifDoo PDF.

  • Why do I fail to download the software from your website?

    Occasionally, you fail to download the program due to the Internet connection or manual intervention.
    Step 1: Make sure your PC is connected to the network and try again;
    Step 2: Switch the network or browser to see if it works
    Step 3: Continuing downloading the installation package.
  • How do I reinstall the software?

    In some cases, users may want to reinstall the software due to the update error or other reasons, here comes the instruction:
    Step 1: Remove the program from your PC by clicking Start > Control Panel > Programs > Uninstall Program;
    Step 2: Download the latest version from the official website or Microsoft AppSource
    Step 3: Run the installer to reinstall the program.
  • Why do I fail to complete the installation process?

    It is mostly because of the poor network. We strongly suggest that you should quit the installation process and re-launch the installer to try installing the software.
  • How do I contact the SwifDoo PDF support team?

    SwifDoo PDF pays high attention to user feedback. To contact the SwifDoo PDF support team, we have two options for you.

    Write feedback to us:

    Step 1: Visit SwifDoo PDF official website and click Support;
    Step 2: In the SwifDoo Support Center, choose Feedback;
    Step 3: Scroll down your page and you will see a feedback form. Fill out this form and press Submit.
    You will see the note that Your ticket was successfully submitted.

    Contact us via email:

    You can also directly contact us with your email.

    Step 1: Go to Contact Us at the bottom of the official website;
    Step 2: Send us an email to contact us.
    Our support staff will follow up with you as soon as possible.

  • Why did I not receive your email?

    In the case that you cannot receive anything from us, please check whether you’ve blocked us or our emails are put in the spam or junk folder.
  • Why do I get no reply from you?

    We are deeply sorry for this, but this may be caused by backlog. When you reach out to us on weekdays, we will write back to you within 48 working hours.
  • What kind of support do you offer?

    SwifDoo PDF only supports email support now. Live chat or phone call is not supported. If you need to contact the support team, please submit a ticket or write to us via [email protected]
  • How do I create a SwifDoo PDF account?

    Creating a SwifDoo PDF account is an easy job. We provide two options:

    1. If you have already downloaded the program, launch the software and click on the Sign Up button to register a new account.
    2. The second option is to create an account from the official website. Navigate to and click Sign In > Create Account. Enter the information as required.
  • What if I don't receive the verification code while signing up?

    When you are creating a new account, we will send you a verification code to confirm your email is valid. If you don’t receive the code, please check your spam or junk folder. Due to the network delay, the code may be sent a few minutes later. Please contact us if you have difficulty in registration.
  • How can I retrieve or reset my password?

    For users who may forget the password, it’s easy to reset or change the password. Users can have their passwords changed via the official website.
    Step 1: Click the URL and enter the email on the input box;
    Step 2: When you receive an email with a verification code, just input the 6-digit number within the field;
    Step 3: Then type your new password to finalize the process.
  • Can I change my email?

    No, SwifDoo PDF doesn’t support changing your email now. Therefore, please remember your email as this is an important person information.
  • How can I delete my account?

    If you find the program less useful and want to delete your account as well as your personal information, please contact the support for help.
  • Are software updates free?

    Yes, we provide a free update service. Users can click the Check for Updates in the main menu. When there are any updates, feel free to get the latest version. The whole process is totally free and we won’t ask for extra fees on software updates.
  • What if I failed to update the program?

    The poor network may result in the update failure. When you have this issue, please go to the official website to download the installation package. We will provide the installer of the latest version on the website. Users just need to reinstall the software. If needed, please contact us for help.