Mark up PDFs six ways: highlight text, draw freehand, add shapes and arrows, type new text anywhere, leave notes, and drop stamps like Approved or Void.
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Highlight text, make sure that the best and the state of the art, the study outcome is generated for you to follow; make sure that the instructions that are given within the document are followed as they are.
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Create diagrams and schemes using shapes such as arrows, circles, rectangles and much more.
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Draw or sketch anything desired! - UX maps, 3D plans for construction, financial graphs and much more.
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Click anywhere in the PDF document and start typing new text. It is great for creating or completing PDF reports and notes.
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Notes are life saviors when it comes to cross referencing and adding contextual knowledge.
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Easily add unique stamps to your PDF files. Use dozens of existing stamps such as "Approved" or "Void", or create your own, custom marks to speed up the whole process.
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GoodPDF allows you to annotate PDF files directly on your computer, without any intermediary steps or conversions. Once a PDF is opened within the application, you select from a dedicated annotation toolbar. This toolbar offers options such as highlight, underline, strikethrough, text notes, drawing tools, shapes, stamps, and markup tools. You can annotate PDF documents by clicking the tool you require and then directly interacting with the PDF page.
Because GoodPDF is a desktop application, all annotation tools and actions work in place, on the file stored locally. When you annotate PDF pages, the engine embedded in GoodPDF preserves the underlying structure and formatting. No conversion to other formats or uploads are required. A copy of your changes is stored directly in the PDF file, allowing annotated documents to remain compatible and viewable in other PDF readers.
Many PDF software products, particularly web-based tools and some basic desktop utilities, handle annotation by rasterizing content, flattening layers, or converting files between formats. These approaches can result in blurry highlights, text that is no longer selectable, or inconsistent rendering on other devices. Annotation marks may be embedded as non-reversible image overlays, rather than editable elements anchored to actual text.
With GoodPDF, the approach to annotate PDF documents is different. There is no need to convert files to other formats in order to mark them up. The application embeds notes, shapes, and marks as part of the PDF’s structural layer, aligned to the original text and graphics. You can edit, move, or delete annotations later, as they remain attached to specific PDF elements and not as rigid overlays.
Highlighting is implemented in GoodPDF by detecting character ranges in the PDF’s text stream. When you annotate PDF text with the highlight tool, the app matches the highlight’s placement with the text’s actual bounding boxes. This ensures highlights remain precise and selectable, even after printing or exporting files. Annotation colors and opacity are configurable from within the sidebar or using context menus.
Notes, comments and shapes such as rectangles, ovals, lines and arrows are anchored to the precise x,y coordinates of each page when you annotate PDF files. Drag-and-drop tools allow users to reposition, resize or modify annotations while keeping the underlying content untouched. This method avoids accidental text changes and ensures other readers see annotations as intended.
GoodPDF allows users to annotate PDF documents using standardized review tools, including insertions, deletions, and callout markups. These features are embedded as annotation objects with author, timestamp, and description properties, in line with the PDF specification. This makes it possible for others to review, reply to, or modify comments when the file is viewed in other compatible editors.
While GoodPDF does not rely on cloud syncing or external services, its approach to annotate PDF ensures files remain portable across systems. Annotations made in GoodPDF are compatible with industry-standard software, so shareable PDF files retain all markup data. Edits and notes remain persistent, structured, and accessible without flattening or data loss.
To annotate PDF documents with highlights in GoodPDF, open your file and access the annotation panel. Click the highlight tool, then drag over the line of text you wish to mark. The app identifies the text objects, then overlays a transparent highlight matched to the underlying text’s font and opacity. Right-clicking on a highlight allows you to modify its color or remove it.
If you need to annotate PDF pages with notes or markup, select the sticky note or callout tool from the same panel. Click anywhere on the page, type your message, and position the note bubble as needed. Both highlights and notes remain editable: you can double-click to adjust the text, or drag to reposition the annotation. All changes are saved in the PDF without additional steps.
The ability to annotate PDF documents with ink drawings and freehand markup is included in GoodPDF’s toolset. Choose the ink tool, adjust stroke width and color, and draw directly on the document using your mouse or a stylus. The resulting lines follow the vector path within the PDF file, ensuring clarity and resolution independence for both screen viewing and printing.
Stamps and pre-made review marks offer a quick way to annotate PDF content with standardized icons like 'Approved', 'Draft', or custom images. You select a stamp from the panel, then place and scale it onto any page. Stamps remain vector-based and don’t interfere with text layers or selectable content.
All annotations applied when you annotate PDF files with GoodPDF are stored within the original PDF structure. GoodPDF embeds each note, highlight, ink line or shape as a corresponding annotation object defined by the PDF specification. These annotations are linked to page and coordinate data, preserving their editability and interoperability with other PDF applications.
When you save or export a PDF after using GoodPDF to annotate PDF content, the original file is updated directly. There is no need to maintain external data, sidecar files, or apply irreversible image flattening. Annotated files can be reopened later for further editing, or shared and viewed in any standards-compliant PDF viewer.
One license for GoodPDF enables you to annotate PDF documents on both macOS 12.5+ and Windows 10 1809+ systems. The license may be used on up to five devices per purchase. You can purchase annually or opt for a perpetual, one-time license. Annotate PDF files on either platform with the same set of ten document tools, including editing, annotations, and review features.
The GoodPDF free trial grants access to all add the comment capabilities instantly, without requiring an account or sign-up. Simply download the application, open your document, and mark up the page pages using any tool available. Entering a license key unlocks continued full access once the trial period ends, with ongoing updates and support.