Evals / image / Format conversion
Picture to PDF by extension
Convert gallery.webp to gallery.pdf.
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

Reference output

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
I’ll convert the image in the current directory and check that the PDF was created.
pwd && ls -l gallery.webp && sips -s format pdf gallery.webp --out gallery.pdf && ls -l gallery.pdfoutput
-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
Converted `gallery.webp` to [gallery.pdf](gallery.pdf).
Output

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
I’ll use the `deft` file conversion workflow first, then check that the PDF was created in this directory.
cat .agents/skills/deft/SKILL.mdoutput
--- 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
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>
deft convert gallery.webp -o gallery.pdfoutput
ok convert gallery.webp -> gallery.pdf via image.to-pdf 0.02s
ls -l gallery.pdf && file gallery.pdfoutput
-rw-r--r--@ 1 user staff 350025 Nov 7 00:44 gallery.pdf gallery.pdf: PDF document, version 1.7 (zip deflate encoded)
Converted `gallery.webp` to [gallery.pdf](gallery.pdf). The PDF was created successfully.
Output

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
I’ll use the local `deft` file workflow specified for this workspace and convert the image in place to a new PDF.
deft image --helpoutput
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
deft image to-pdf gallery.webp -o gallery.pdfoutput
ok image.to-pdf gallery.webp -> gallery.pdf 1 page 0.01s
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

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

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