I created all three PDFs and checked them. The one oddity is that the bullet characters in terms.pdf come out as (cid:127) when extracted.
Files (in the working folder, built by scripts/make.py, checked by scripts/check.py):
invoice.pdfis 1 page. It has a title for "Northwind Sample Co" and three line items, and everything is marked as sample.terms.pdfis 1 page. It has the heading "Sample Terms" and three bullet terms.combined.pdfis 2 pages, with the invoice first and the terms second. That matches 1 + 1 pages.
Text extracted from combined.pdf
- Page 1 has the invoice title, the "fictional / made-up sample data" note, the table rows, and the "SAMPLE - not a real invoice." footer.
- Page 2 has "Sample Terms" and the three terms: payment due in 30 days, 1% monthly late fee, and goods remaining sample property until paid. Each one is marked "(sample term)".
Table extracted from page 1 (one table found):
| Item | Qty | Unit Price | Amount |
|---|---|---|---|
| Sample Widget | 10 | $5.00 | $50.00 |
| Sample Gadget | 2 | $25.00 | $50.00 |
| Sample Service Hour | 4 | $30.00 | $120.00 |
| Total | $220.00 |
Verification: The line items add up: 50 + 50 + 120 = 220, which matches the stated total. The extracted table has the same 5 rows and 4 columns I built, with no merged or missing cells.
Problem: pdfplumber reads the bullet glyph as (cid:127) instead of "•". That is how the built-in Helvetica font encodes the bullet, so it is probably an extraction quirk and the bullets should display normally. I haven't rendered the pages, so I can't confirm how they look. If clean extracted text matters to you, I can switch to a plain "-" marker.
Test run: two sample one-page PDFs built with reportlab, merged with pypdf, then read back with pdfplumber, in a temporary folder. The run was allowed to write files and run python3 only. I re-opened the files myself: 1 + 1 pages merged into 2, and the table text matched. The model flagged that the bullet glyph extracts as (cid:127). Pages were not rendered, so appearance was not checked. All content is sample.
它做什麼
使用三個常見的函式庫：pypdf 處理結構（合併、拆分、調整順序、旋轉、表單、中繼資料），pdfplumber 擷取文字與表格，reportlab 產生新的 PDF。它先檢查每個輸入檔（頁數、尺寸、是否加密、表單欄位，以及每頁能擷取多少文字，藉此及早發現掃描頁），再執行任務，並重新開啟每個輸出，核對頁數、文字樣本、表單值與檔案大小。它會回報沒有可擷取文字的頁面，說明需要 OCR，並在擷取出的表格可能不可靠時提醒。它只在你提供密碼、且你有權使用該檔案時開啟受保護的 PDF，不會嘗試破解保護。
輸出
新的 PDF 檔案與產生它們的腳本、改動了什麼、核對結果，以及發現的問題，例如掃描頁或缺少字型。
適合什麼場景
合併與拆分文件，從報告中擷取表格，加浮水印與頁碼，填寫表單，產生簡單的發票或報告。
中風險：純指令檔，本身沒有腳本，但它會撰寫並執行 Python，在你的工作目錄建立檔案，也可能建議在虛擬環境安裝 pypdf、pdfplumber 與 reportlab。它不會覆蓋你的原檔案，也不會破解密碼保護。已在暫存資料夾用範例 PDF 試用一次：產生了兩份 PDF、合併並正確擷取了表格；項目符號在擷取時變成了 (cid:127)，並且沒有渲染頁面，所以外觀沒有檢查。AIBars 原創（MIT）。