pdf

This guide covers essential PDF processing operations using Python libraries and command-line tools. For advanced features, JavaScript libraries, and detailed examples, see REFERENCE.md. If you need to fill out a PDF form, read FORMS.md and follow its instructions.

IMPORTANT: Never use Unicode subscript/superscript characters (₀₁₂₃₄₅₆₇₈₉, ⁰¹²³⁴⁵⁶⁷⁸⁹) in ReportLab PDFs. The built-in fonts do not include these glyphs, causing them to render as solid black boxes.

For canvas-drawn text (not Paragraph objects), manually adjust font the size and position rather than using Unicode subscripts/superscripts.

（中文）每當使用者想要對 PDF 檔案執行任何操作時，請使用此技能。這包括從 PDF 讀取或提取文字/表格、將多個 PDF 組合或合併為一個、分割 PDF、旋轉頁面、添加浮水印、建立新 PDF、填寫 PDF 表單、加密/解密 PDF、提取圖像以及對掃描的 PDF 進行 OCR 使其可搜尋。如果使用者提到 .pdf 檔案或要求產生一個，請使用此技能。 來源：jackiexiao/jackie-skills-everyday。