Evals / pdf / Stamp and number

Chinese page numbers

给 f1040.pdf 每页底部加上“第 1 页”这样的页码，保存为 numbered.pdf。

In English: Add page numbers such as “Page 1” at the bottom of each page of f1040.pdf and save it as numbered.pdf.

normaledgechinesedeft pdf number

The task

The reference answer shows the job can be done with deft. It is not an agent run.

deft pdf number f1040.pdf --format "第 {n} 页" -o numbered.pdf

Input

f1040.pdf 215.1 KB · 2 pages
Page 1Page 2

Reference output

numbered.pdf 227.9 KB · 2 pages
Page 1Page 2
How a result is judged (2 checks)
  • pdf_pages: file = "numbered.pdf", pages = 2
  • pdf_changed: file = "numbered.pdf", from = "f1040.pdf", page = 1, min_difference = 0.01

Runs

CodexWithout deftPassed2026-11-07

Time
75s
New tokens
8.0k
Total input
143.6k
Output tokens
1.6k
Commands
8
Failed
1

Trace

  1. 我会直接检查当前目录里的 PDF，并生成带中文页码的 `numbered.pdf`。

  2. pwd && rg --files -g 'f1040.pdf' -g 'numbered.pdf' -g 'AGENTS.md'
    output
    f1040.pdf
  3. python3 - <<'PY' import importlib.util for m in ['pypdf','PyPDF2','reportlab','fitz']: print(m, bool(importlib.util.find_spec(m))) PY
    output
    pypdf False
PyPDF2 False
reportlab False
fitz False
  4. command -v pdfinfo; command -v pdftk; command -v qpdf; command -v gs; command -v mutool; command -v magick; command -v convert; command -v cupsfilter;
    output
    /usr/local/bin/gs
/usr/sbin/cupsfilter
  5. fc-list :lang=zh family file | head -10; gs -q -dNODISPLAY -c '(f1040.pdf) (r) file runpdfbegin pdfpagecount = quit (exit 1)
    output
    zsh:1: unmatched '
  6. command -v swift; ls -lh f1040.pdf;
    output
    /usr/bin/swift
-rw-r--r--@ 1 user  staff   215K Nov  5 21:11 f1040.pdf
  7. ls -l numbered.pdf 2>/dev/null; pgrep -fl add_page_numbers || true
    output
    sysmon request failed with error: sysmond service not found
pgrep: Cannot get process list
  8. cat > <tmp> <<'SWIFT' import Foundation import PDFKit import AppKit let input = URL(fileURLWithPath: CommandLine.arguments[1]) let output = URL(fileURLWithPath: CommandLine.arguments[2]) guard let doc = PDFDocument(url: input) else { fatalError(\"Cannot open input PDF\") } let font = NSFont(name: \"STHeitiSC-Medium\", size: 10) ?? NSFont.systemFont(ofSize: 10) for index in 0..<doc.pageCount { guard let page = doc.page(at: index) else { continue } let box = page.bounds(for: .mediaBox) let w: CGFloat = 90, h: CGFloat = 18 let rect = CGRect(x: box.midX - w/2, y: box.minY + 12, width: w, height: h) let annotation = PDFAnnotation(bounds: rect, forType: .freeText, withProperties: nil) annotation.contents = \"第 \\(index + 1) 页\" annotation.font = font annotation.fontColor = .black annotation.alignment = .center annotation.border = PDFBorder() page.addAnnotation(annotation) } guard doc.write(to: output) else { fatalError(\"Cannot write output PDF\") } print(\"Wrote \\(doc.pageCount) pages\") SWIFT swift <tmp> f1040.pdf numbered.pdf
    output
    2026-11-06 17:16:42.008 swift-frontend[93218:6508350] PDFFormField with no corresponding Widget sharing the field name.
Wrote 2 pages
  9. swift <tmp> f1040.pdf numbered.pdf; ls -lh numbered.pdf
    output
    2026-11-06 17:16:42.008 swift-frontend[93480:6510408] PDFFormField with no corresponding Widget sharing the field name.
Wrote 2 pages
-rw-r--r--@ 1 user  staff   444K Nov  6 17:16 numbered.pdf

  10. 已为 `f1040.pdf` 的两页底部加上“第 1 页”和“第 2 页”，并保存为 [numbered.pdf](numbered.pdf)。

Output

numbered.pdf 444.2 KB · 2 pages
Page 1Page 2

CodexWith deft, skill installedPassedRead the skillUsed deft2026-11-07

Time
15s
New tokens
9.9k
Total input
72.9k
Output tokens
0.5k
Commands
4
Failed
0

Trace

  1. 我会先读取 deft 技能说明，按它的 PDF 处理流程给每页加页码，并将结果写到当前目录的 `numbered.pdf`。

  2. cat .agents/skills/deft/SKILL.md && pwd && rg --files -g 'f1040.pdf' -g 'AGENTS.md' -g 'numbered.pdf'
    output
    ---
name: deft
description: "Use deft instead of writing a script for file jobs: PDF merge/split/compress/watermark, image resize/convert/compress, video and audio trim/convert/compress, spreadsheets, Markdown to PDF/HTML, and YouTube downloads and subtitles."
---

# deft

One local command for file jobs. Prefer it over writing Python or shell scripts.

Syntax: `deft <group> <command> [inputs] [-o output] [--options]`

Groups:
- `pdf`: Merge, split, compress, encrypt, forms, OCR, compare, convert
- `image`: Resize, crop, convert, compress, filters, montage, OCR
- `video`: Trim, crop, speed, convert, compress, GIF, frames (ffmpeg)
- `audio`: Convert, trim, merge, fade, speed, tag, normalize (ffmpeg)
- `doc`: Word/ODT/RTF: to text, Markdown, HTML, PDF; find and replace
- `slides`: PowerPoint: extract text, Markdown outline, PDF handout
- `data`: JSON/YAML/TOML/XML: convert, query with jq syntax, merge, diff
- `sheet`: Excel/CSV/ODS tables: filter, sort, join, pivot, convert
- `md`: Markdown to PDF, HTML, Word, EPUB; table of contents
- `html`: HTML to Markdown, text, Word, PDF; screenshots
- `epub`: E-books: info, to text, Markdown and PDF
- `email`: EML files: headers, text, attachments
- `contact`: VCF address books: to and from CSV
- `calendar`: ICS calendars: to and from CSV
- `gps`: GPX and KML tracks: convert, distance and time
- `youtube`: Info, download, audio, subtitles, thumbnail (yt-dlp)
- `file`: Any file: hash, duplicates, batch rename, base64, encoding
- `qr`: Cre
… 739 more characters
  3. deft pdf
    output
    deft pdf - commands (input -> output)
  info            pdf -> report       Pages, size, metadata, fonts, images
  compare         pdf... -> report    Compare two PDFs: text and pixels
  compress        pdf -> pdf          Make smaller: --level, --target-size 2MB
  crop            pdf -> pdf          Trim pages: --margin, --box, --auto
  decrypt         pdf -> pdf          Remove a password you know
  delete          pdf -> pdf          Remove pages: --pages 2,5-7
  encrypt         pdf -> pdf          Protect with a password (AES-256)
  extract-images  pdf -> image...     Save embedded pictures, unchanged
  extract-sheets  pdf -> csv|xlsx...  Save each table apart [beta]
  fields          pdf -> report       List form fields
  fill            pdf -> pdf          Fill a form from JSON: --data values.json
  flatten         pdf -> pdf          Bake forms into pages
  from-images     image... -> pdf     One page per image
  from-md         md -> pdf           Typeset Markdown as PDF
  grayscale       pdf -> pdf          Remove colour (Ghostscript)
  merge           pdf... -> pdf       Join PDFs in the given order
  meta            pdf -> pdf          Read or set metadata and bookmarks
  number          pdf -> pdf          Add page numbers: --format
  ocr             pdf -> pdf|txt      Make a scan searchable
  redact          pdf -> pdf          Black out for good: --box or --text
  repair          pdf -> pdf          Rebuild a damaged PDF (Ghostscript)
  resize          pdf -> p
… 892 more characters
  4. deft pdf number --help && deft pdf info f1040.pdf
    output
    deft pdf number - Add page numbers: --format

Usage: deft pdf number <pdf>... [-o <pdf|dir>] [options]
In: pdf (each handled separately)   Out: pdf (default <name>.numbered.<ext>)

Options:
  --format <text>              Template with {n} and {total} (default {n})
  --position <position>        Where on the page (default bottom)
  --margin <length>            Distance from the page edge (default 10mm)
  --font-size <number>         Text size in points (default 10)
  --color <color>              Text color (default black)
  --first-page <n>             First page that gets a number (default 1)
  --start <n>                  Number shown on that page (default 1)
  --password <text>            Password of an encrypted input
Common: -o --force --dry-run --json -j   (deft help common)

Examples:
  deft pdf number three-pages.pdf -o numbered.pdf
  deft pdf number report.pdf --format "Page {n} of {total}" --first-page 2

Result fields: numbered
ok pdf.info f1040.pdf  2 pages, letter, PDF 1.7
pages=2 version=1.7 width=612.0 height=792.0 paper=letter title="2025 Form 1040" author=C:DC:TS:CAR:MP producer="Designer 6.5" images=0 fonts=12 forms=true
  5. deft pdf number f1040.pdf -o numbered.pdf --format '第 {n} 页'
    output
    ok pdf.number f1040.pdf -> numbered.pdf  2 pages numbered  0.24s

  6. 已完成：`f1040.pdf` 的每页底部已加上“第 1 页”这样的页码，文件保存为 [numbered.pdf](numbered.pdf)。

Output

numbered.pdf 227.9 KB · 2 pages
Page 1Page 2

CodexWith deft, skill as AGENTS.mdPassed2026-11-05

Time
16s
New tokens
9.7k
Total input
62.0k
Output tokens
0.4k
Commands
3
Failed
0

Trace

  1. 我会用 `deft` 给当前目录里的 PDF 加页码，并将结果保存为 `numbered.pdf`。

  2. deft pdf
    output
    deft pdf - commands (input -> output)
  info         pdf -> report      Pages, size, metadata, fonts, images
  compress     pdf -> pdf         Make a PDF smaller: --level, --target-size 2MB
  delete       pdf -> pdf         Remove pages: --pages 2,5-7
  from-images  image... -> pdf    One page per image, in the given order
  from-md      md -> pdf          Typeset a PDF with headings, tables, code, images
  merge        pdf... -> pdf      Join PDFs in the given order
  number       pdf -> pdf         Add page numbers: --format "{n} of {total}"
  rotate       pdf -> pdf         Turn pages clockwise: --angle 90, --pages
  select       pdf -> pdf         Keep and reorder pages: --pages 3,1-2
  split        pdf -> pdf...      One file per page, or --every N, --ranges 1-3,4-
  to-images    pdf -> png|jpg...  Render pages to images: --dpi, --pages
  to-text      pdf -> txt         Extract text (form feed between pages)
  watermark    pdf -> pdf         Stamp text or an image on pages: --text, --image
More: deft pdf <command> --help
  3. deft pdf number --help
    output
    deft pdf number - Add page numbers: --format "{n} of {total}"

Usage: deft pdf number <pdf>... [-o <pdf|dir>] [options]
In: pdf (each handled separately)   Out: pdf (default <name>.numbered.<ext>)

Options:
  --format <text>              Template with {n} and {total} (default {n})
  --position <position>        Where on the page (default bottom)
  --margin <length>            Distance from the page edge (default 10mm)
  --font-size <number>         Text size in points (default 10)
  --color <color>              Text color (default black)
  --first-page <n>             First page that gets a number (default 1)
  --start <n>                  Number shown on that page (default 1)
  --password <text>            Password of an encrypted input
Common: -o --force --dry-run --json -j   (deft help common)

Examples:
  deft pdf number three-pages.pdf -o numbered.pdf
  deft pdf number report.pdf --format "第 {n} 页" --first-page 2

Result fields: numbered
  4. deft pdf number f1040.pdf -o numbered.pdf --format "第 {n} 页"
    output
    ok pdf.number f1040.pdf -> numbered.pdf  2 pages numbered  0.19s

  5. 已为 `f1040.pdf` 的 2 页底部添加“第 1 页”格式的页码，并保存为 [numbered.pdf](numbered.pdf)。

Output

Its files were not kept in this run. The last line of the trace is its own report.

Claude Opus 5.5Without deftPassed2026-11-07

Time
70s
New tokens
20.7k
Total input
175.4k
Output tokens
4.3k
Commands
0
Failed
0

Trace

    Output

    numbered.pdf 444.3 KB · 2 pages
    Page 1Page 2

    Claude Opus 5.5With deft, skill installedPassedRead the skillUsed deft2026-11-07

    Time
    52s
    New tokens
    16.3k
    Total input
    270.2k
    Output tokens
    2.7k
    Commands
    0
    Failed
    0

    Trace

      Output

      .claude/skills/deft/SKILL.md 2.1 KB
      ---
name: deft
description: "Use deft first for any simple, direct operation on local files, whatever the type: convert, read, extract, edit, compress, merge, split, compare or inspect. Try it before writing a script or one-liner. If unsure, run deft find; if it says no command does this, use another tool. Not for programming work: to read, write or change source code, skip it."
---

# deft

One local command for file jobs. Prefer it over writing Python or shell scripts.

Syntax: `deft <group> <command> [inputs] [-o output] [--options]`

Groups:
- `pdf`: Merge, split, compress, encrypt, forms, OCR, compare, convert
- `image`: Resize, crop, convert, compress, adjust, montage, OCR
- `video`: Trim, merge, convert, compress, subtitles, GIF, frames (ffmpeg)
- `audio`: Convert, trim, normalize, denoise, cut silence (ffmpeg)
- `doc`: Word/ODT/RTF: to text, Markdown, HTML, PDF; find and replace
- `slides`: PowerPoint: extract text, Markdown outline
- `sheet`: Excel/CSV/ODS tables: SQL query, pivot, merge, split, convert
- `json`: JSON: convert, format, merge, diff, validate
- `toml`: TOML: convert, format, merge, diff, validate
- `xml`: XML: convert, format, merge, diff, validate
- `yaml`: YAML: convert, format, merge, diff, validate
- `md`: Markdown to PDF, HTML, Word, EPUB; table of contents
- `html`: HTML to Markdown, text, Word and PDF
- `epub`: E-books: info, to text, Markdown and PDF
- `gps`: GPX and KML tracks: convert, distance and time
- `qr`: Create QR codes and barcodes; read QR codes

How to use it:
1. Run `deft <group>` to list commands, or `deft find "<what you want>"` to search. If it says `no command does this`, use another tool.
2. Run `deft <group> <command> --help` for options and examples.
3. `deft convert <in> -o <out.ext>` converts between formats by extension.
4. Results are one line starting with `ok`, `partial` or `error`; add `--json` to parse them. Errors include a `hint:` with the fix.

Inputs are never overwritten; pass `--force` or `--in-place` to allow it. Globs and directories work as inputs; several inputs run in parallel.

If `deft` is not installed, ask the user, then follow https://github.com/firstprayer/deft/blob/main/docs/INSTALL.md
      numbered.pdf 227.9 KB · 2 pages
      Page 1Page 2

      Claude CodeWithout deftNot run yet

      Claude CodeWith deftNot run yet