PDF Expert
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    Contents
    • Using PDF Expert
      • Getting Started with PDF Expert
      • Highlight, underline, and strikethrough text
      • Text comments, shapes, and pop-up notes
      • Insert stamps to PDFs
      • Customize text and annotation colors
      • Draw on a PDF file
      • Use stickers in PDF Expert for iOS
      • View, search, and remove annotations
      • Export Annotation Summary
      • Content Selection Tool
      • Edit text in PDF files
      • Work with images in PDFs
      • Work with to-page and to-web links
      • Remove sensitive content
      • Supported forms and fields
      • Fill out PDF forms
      • Sign PDF documents
      • Enhance and adjust your scans
      • Convert scanned documents into text (OCR)
      • Scale and measure drawings
      • Polygon and polyline shapes
      • Red Line tools
      • Convert images, MS Office and iWork files to PDF
      • Export PDFs to other formats on Mac
      • Convert PDFs to images, Word, Excel, PowerPoint, Text files on iOS
      • Reading mode
      • Select your way to scroll pages
      • Enable the two-page view
      • Zooming modes in PDF Expert
      • Jump to a specific page
      • Bookmark pages
      • Create a table of contents in a PDF file
      • Turn on the Night or Sepia theme
      • Read PDF text out loud
      • Keep your device awake while reading
      • View two PDFs side by side
      • Add page numbers, bates numbers, and text
      • Use Smart Search
      • AI Chat with PDF
      • Page number indicator
      • Create a new PDF file
      • Add, delete, and rearrange PDF pages
      • Rename files and folders
      • Recents and Favorites
      • Sort files and folders by name, date, and size
      • Password protect PDFs
      • Save the file as flatten
      • Reduce the PDF file size
      • Merge PDFs
      • Manage annotated pages
      • Move files and folders
      • Switch between the Grid and List views
      • Mark files and folders with color tags
      • Open a file in PDF Expert
      • Organize your files with Inbox
      • Page Resize
      • Access your device files via the Files app folder
      • Sync your PDF files through web clouds
      • Sync a folder from cloud storage
      • Connect to Mac or PC via SMB
      • Set up sync with Mac via SFTP
      • Time Capsule setup
      • Share files via the Share button
      • Transfer files between iOS device and desktop using Wi-Fi
      • Transfer files from Safari to PDF Expert for iOS
      • Transfer files between iPad and iPhone using WebDAV
      • Share text with other apps
      • Share files from cloud via a link
      • Transfer files between PDF Expert and your Mac using a USB cable
      • PDF Expert Widgets
      • Turn on the Dark Mode
      • Work with tabs on your iPad
      • Customize the toolbar in PDF Expert for iOS
      • Create your own toolset in PDF Expert for iOS
      • Make PDF Expert your default PDF viewer on Mac
      • Open email attachments in PDF Expert
      • Keyboard Shortcuts
      • Make presentations with PDF Expert and FaceTime
      • Full Screen Mode on Mac
      • Getting Started with Tools tab on Mac
      • Presentation Mode
      • Improve your workflow with Sidecar and Camera Continuity
      • Change the app's language on iOS
      • Convert PDF to black and white on Mac
      • Supported Scripting in AcroForms (Adobe Acrobat forms)
      • Supported Scripting in XFA (LiveCycle Designer forms)
      • URL schemes
    • Troubleshooting
      • PDF Expert quits or doesn't open
      • PDF Expert freezes
      • All files in the app look blank
      • Annotation tools do not work
      • Printing issues on Mac
      • Corrupted files
      • Sync issues
      • Restore accidentally deleted files
      • File cannot be opened
      • Annotations made in PDF Expert are not displayed correctly in a third-party app on iOS
      • File loads slowly
      • Garbled text
      • AI Chat with PDF issues
      • Connection issues on iOS
      • iCloud files don't stay downloaded
    • Billing & Subscription
      • How to get PDF Expert
      • Set up an account for cross-platform app usage
      • How to get PDF Expert Premium
      • Check and manage your subscription
      • How to cancel the free trial
      • The PDF Expert License FAQ
      • The “trial expired” message appears after a purchase
      • Is PDF Expert available on Windows?
      • The PDF Expert Billing FAQ
      • The difference between PDF Expert 2 and PDF Expert 3
    • Contact us

    Insert stamps to PDFs

    PDF Expert has a collection of stamps you can add to your PDF files. Moreover, you can create your own stamps with texts or images.

    Jump to:
    • Add a Stamp
    • Create a custom stamp
    • Change the size of the added stamp
    • Bring to front, send to back, copy or delete a stamp

    Add a Stamp

    Mac iOS
    1. Open a PDF file and select the Fill & Sign tab.
    2. Select the Stamp  tool.
    3. Choose a stamp on the sidebar on the right and click it.
    4. Click where you want the stamp to be inserted. You can use one stamp multiple times. If needed, rotate it using buttons on the right.
    5. When finished working with stamps, click in the top toolbar to exit the Add Stamp mode. To exit the Annotate mode, click the Annotate tab in the top.
    1. Tap and hold on a place in a document where you want to insert a stamp.
    2. Tap Stamp in a pop-up menu. Note: On your iPhone, use the arrow button to find this option.
    3. Select a stamp from the list.
    4. You can tap and hold the stamp to move it.
    5. To resize the stamp, just drag its corner.

    Create a custom stamp

    Mac iOS
    1. Open a PDF file and select the Fill & Sign tab.
    2. Select the Stamp  tool.
    3. Click the Custom tab on the sidebar on the right.
    4. Add stamps using + icon at the top.
    5. For the text stamp, you can type any text you like. To include the current date or time to your stamp, tick Date and Time. PDF Expert automatically updates the date and time on your stamps. For the image stamp, you can select a picture from Photos.
    6. If you choose to create an image stamp, you can tick the Convert white color to transparent option. Control the Tolerance level with a slider that appears after this. 
    7. Click where you want the stamp to be inserted. You can use one stamp multiple times. If needed, rotate it using buttons on the right.
    8. When finished working with stamps, click  in the top toolbar to exit the Add Stamp mode. To exit the Annotate mode, click the Annotate tab in the top.
    1. Tap and hold where you want to add a stamp.
    2. Select Stamp in a pop-up menu.
    3. Tap Custom.
    4. Select New Text Stamp or New Image Stamp.

    For the text stamp, you can type any text you like. To include the current date or time to your stamp, enable the Date or Time toggle. PDF Expert automatically updates the date and time on your stamps.

    For the image stamp, you can select a picture from Photos.

    Note: The stamp you create is available in the Custom tab of the Stamps menu.

    Change the size of the added stamp

    Mac iOS

    Once you added a stamp, drag the corner of the stamp to resize it. Later on, click the stamp first, then drag the corner of the stamp.

    To resize the stamp, tap it and drag its corner.

    Bring to front, send to back, rotate, copy or delete a stamp

    Mac iOS

    Right-click a stamp and choose one of the actions:

    • Bring to front  or Send to back;
    • Copy - you can also copy a stamp using the Command C shortcut;
    • Delete - you can also delete a stamp by clicking it and pressing the Delete key;
    • Rotate - choose between the 90’ Left, 90’ Right and 180’ options.
    1. Tap a stamp.
    2. In a pop-up menu, select Copy or Delete, Bring to front, or Send to back.
    Read next: Customize text and annotation colors
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    • Sign PDF
    • Merge PDF

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