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Knowledge Center

Document Viewer

Document Viewer offers you a quick, straightforward overview of documents stored on your Synology NAS. You can also share documents with shared links and protect them from unwanted access, download, and distribution.

Note:

  • Document Viewer is dependent on the Docker package.

To open documents:

  1. Launch Document Viewer and click Open (the folder icon) on the toolbar.
  2. Find and select the desired document, and click Select. If the document is password-protected, you also need to enter the password for verification.
  3. Both the document pages and thumbnails will be displayed by default. To show/hide thumbnails, click Show Thumbnails.

Note:

  • The formats below are partially supported and may not be fully displayed on Document Viewer:
    • Document: .odm, .ott, .sxw, .stw, .fodt, .docm, .dotx, .dotm, .dot, .wps, .rtf
    • Spreadsheet: .odc, .ots, .sxc, .stc, .fods, .xlsm, .xltm, .xltx, .xlsb, .xlc, .xlm, xlw, .xlk, .xlt
    • Presentation slide: .otp, .sti, .sxd, .fodp, .pptm, .ppsx, .potm, .potx, .pps, .pot
    • Illustration: .odg, .otg, .sxd, .std, .cdr, .cmx, .vdx, .vsd, .vsdm, .vsdx
    • E-book: .epub, .mobi

To adjust content display:

You can adjust content display in the following ways:

  • To have larger/smaller display of the content: Click Zoom In and Zoom Out on the toolbar.
  • To change content scale: Click the drop-down scale menu on the toolbar. Select a predefined scale ratio or an option from Auto Scale to Fit Page Width.
  • To rotate content display: Click Rotate Clockwise or Rotate Counterclockwise to rotate the content by 90 degrees in the specified direction.

To view outlines:

If you have created outlines for a file, you can quickly reach the desired page with its outlines.

  1. If thumbnails are hidden, click Show Thumbnails on the toolbar to show them.
  2. Click Outlines to show the outline structure.
  3. Click the entry in the outlines to go to the desired page.

Note:

  • You can view outlines in files of these formats: .doc, .docx, .pdf, .ppt, .pptx, .xls, .xlsx

To use the select tool and hand tool:

When viewing .pdf files, you can switch between the select tool and the hand tool to suit your needs:

  1. Click the Select Tool or the Hand Tool on the toolbar:
    • Select Tool (the arrow icon): You can select, highlight, or copy the content.
    • Hand Tool (the hand icon): You can drag and pull the pages in the desired directions.

To search content by keywords:

  1. Click Search (the magnifying glass icon) and enter the keywords.
  2. To locate case-sensitive matches, select Match case.
  3. The search will begin in real time and mark the matches in the content.
  4. Click < or > to jump to the previous or next match.

To view document metadata:

Click More > Document Info to find the relevant document information from Size to Page count.

To download documents:

Click More > Download to download the document to the local computer.

To view and download attachments:

If your .pdf file comes with attachments, you can view and download the attachments.

  1. If thumbnails are hidden, click Show Thumbnails on the toolbar to show them.
  2. Select Attachments. The attachments will appear in the left panel.
  3. Click the attachments to download the attached files.

To print documents:

Click Print (the printer icon) and specify relevant settings for the printout.

Managing Shared Links

To create shared links:

You can share documents stored on your Synology NAS via shared links. Shared links can also be protected by password/user credentials to avoid unwanted access.

  1. Click More on the toolbar, and select Share.
  2. Click Validity period to customize duration of the shared link:
    • Set up start time: Select this option to determine by date and time when the link starts to work.
    • Set up stop time: Select this option to determine by date and time when the link stops to work.
    • Number of allowed access: Select this option to determine how many times the link can be accessed.
  3. To protect the link from unwanted access, select Enable secure sharing:
    • Share with DSM users: Select this option to decide which DSM user can access the document with the user credentials.
    • Share with others: Select this option to set up a password to allow access from non-DSM users.
  4. To avoid unwanted download and distribution of the document, select Disable document download, printing, and copy. The document will also be denied the printing function.
  5. Share the shared link via any of the following methods:
    • Simply copy the URL to target viewers.
    • Send out the link via the Default Email (your DSM email account) or via Mail (a third-party email application). For first-time users, follow the wizard's instructions to set up an email account.
    • Click Get QR Code to allow access via the QR code.
  6. Click Save to complete the setup.

To modify existing shared links:

  1. Click More > Settings > Manage Shared Links.
  2. Select the desired shared link, and click Edit to modify relevant settings.

Note:

  • You can limit sharing permissions to administrators only at More > Settings > Advanced Settings.

To delete shared links:

Deleted shared links will immediately stop working.

  1. Click More > Settings > Manage Shared Links.
  2. Delete unwanted shared links via either of the following ways:
    • To delete individual shared links, select the unwanted shared link, and click Delete.
    • To delete all invalid links, click Clear invalid links to delete all invalid and overdue shared links.