Evals / image / Format conversion

Picture to PDF by extension

Convert gallery.webp to gallery.pdf.

easysinglesmokedeft convert

The task

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

deft convert gallery.webp -o gallery.pdf

Input

gallery.webp 29.6 KB · 550x368
gallery.webp

Reference output

gallery.pdf 341.8 KB · 1 page
Page 1
How a result is judged (2 checks)
  • pdf_pages: file = "gallery.pdf", pages = 1
  • pdf_page: file = "gallery.pdf", page = 1, ink_min = 0.2

Runs

CodexWithout deftPassed2026-11-07

Time
8s
New tokens
5.0k
Total input
26.7k
Output tokens
0.1k
Commands
1
Failed
0

Trace

  1. I’ll convert the image in the current directory and check that the PDF was created.

  2. pwd && ls -l gallery.webp && sips -s format pdf gallery.webp --out gallery.pdf && ls -l gallery.pdf
    output
    -rw-r--r--@ 1 user  staff  30320 Nov  5 21:11 gallery.webp
    gallery.webp
      gallery.pdf
    -rw-r--r--@ 1 user  staff  77379 Nov  7 00:44 gallery.pdf
  3. Converted `gallery.webp` to [gallery.pdf](gallery.pdf).

Output

gallery.pdf 75.6 KB · 1 page
Page 1

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

Time
13s
New tokens
6.8k
Total input
70.4k
Output tokens
0.4k
Commands
4
Failed
1

Trace

  1. I’ll use the `deft` file conversion workflow first, then check that the PDF was created in this directory.

  2. cat .agents/skills/deft/SKILL.md
    output
    ---
    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; r
    … 700 more characters
  3. deft image convert gallery.webp -o gallery.pdf (exit 2)
    output
    error BAD_OPTION -o gallery.pdf: deft image convert writes png, jpg, webp, gif, tiff, bmp, ico, avif
    hint: for other formats: deft convert <input> -o <name.ext>
  4. deft convert gallery.webp -o gallery.pdf
    output
    ok convert gallery.webp -> gallery.pdf  via image.to-pdf  0.02s
  5. ls -l gallery.pdf && file gallery.pdf
    output
    -rw-r--r--@ 1 user  staff  350025 Nov  7 00:44 gallery.pdf
    gallery.pdf: PDF document, version 1.7 (zip deflate encoded)
  6. Converted `gallery.webp` to [gallery.pdf](gallery.pdf). The PDF was created successfully.

Output

gallery.pdf 341.8 KB · 1 page
Page 1

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

Time
10s
New tokens
8.9k
Total input
45.5k
Output tokens
0.2k
Commands
2
Failed
0

Trace

  1. I’ll use the local `deft` file workflow specified for this workspace and convert the image in place to a new PDF.

  2. deft image --help
    output
    deft image - commands (input -> output)
      info      image -> report  Format, dimensions, EXIF orientation, GPS
      compress  image -> image   Smaller file: --quality, --target-size 200KB
      convert   image -> image   Change format: --to png|jpg|webp|avif|gif|tiff|bmp|ico
      crop      image -> image   Cut a region: --box x,y,w,h or --aspect 16:9
      flip      image -> image   Mirror: --direction horizontal|vertical
      resize    image -> image   Scale: --size 800x, 1920x1080, 50%
      rotate    image -> image   Turn clockwise: --angle 90 (EXIF is applied first)
      strip     image -> image   Remove EXIF, GPS and text metadata
      to-pdf    image... -> pdf  One page per image, in the given order
    More: deft image <command> --help
  3. deft image to-pdf gallery.webp -o gallery.pdf
    output
    ok image.to-pdf gallery.webp -> gallery.pdf  1 page  0.01s
  4. Converted `gallery.webp` to [gallery.pdf](gallery.pdf). The PDF has one page.

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
11s
New tokens
8.7k
Total input
42.1k
Output tokens
0.4k
Commands
0
Failed
0

Trace

    Output

    gallery.pdf 36.7 KB · 1 page
    Page 1

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

    Time
    10s
    New tokens
    9.2k
    Total input
    43.6k
    Output tokens
    0.3k
    Commands
    0
    Failed
    0

    Trace

      Output

      ---
      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
      
      gallery.pdf 341.8 KB · 1 page
      Page 1

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