“diff-pdf” is a tool specifically designed for comparing and highlighting the differences between two PDF (Portable Document Format) files. It provides a convenient way to visually identify discrepancies, changes, or updates made between two versions of a PDF document.
The primary purpose of “diff-pdf” is to simplify the process of comparing PDF files, particularly when it comes to identifying textual changes, layout modifications, or any other variations that might exist between the two documents.
When used, “diff-pdf” analyzes the content and structure of the two PDF files provided as input. It then generates a visual representation that highlights the differences between the documents. These differences are often displayed using graphical overlays, color-coded markings, or other visual indicators to make them easily distinguishable.
By comparing the two PDF files side by side, users can readily identify variations in text, images, formatting, or any other elements present in the documents. This can be particularly useful when reviewing drafts, comparing versions of contracts, evaluating the impact of changes in technical documentation, or ensuring the accuracy of translations.
Furthermore, “diff-pdf” often provides additional features to enhance the comparison process. These may include the ability to zoom in and out, navigate through the pages, and customize the visual presentation of differences based on user preferences.
It’s important to note that “diff-pdf” focuses specifically on comparing the visual aspects of PDF files and highlighting the differences between them. It does not perform a deep analysis of the content or structure of the documents beyond what is visible on the surface.
diff-pdf Command Examples
1. Compare PDFs, indicating changes using return codes (0 = no difference, 1 = PDFs differ):
# diff-pdf //cdn.thegeekdiary.com/path/to/a.pdf /path/to/b.pdf
2. Compare PDFs, outputting a PDF with visually highlighted differences:
# diff-pdf --output-diff=//cdn.thegeekdiary.com/path/to/diff.pdf path/to/a.pdf path/to/b.pdf
3. Compare PDFs, viewing differences in a simple GUI:
# diff-pdf --view path/to/a.pdf /path/to/b.pdf
Summary
In summary, “diff-pdf” is a tool that facilitates the comparison of two PDF files by visually highlighting the differences between them. It simplifies the process of identifying changes or variations in PDF documents, making it easier to review, evaluate, and validate the content and layout of different versions of the same document.