---
name: "pdf123-images-to-pdf"
description: "Combine JPG/PNG images into a PDF. Runs the PDF123 \"Image to PDF\" tool (pdf123.xyz) over its REST API with curl, no account needed. Use when the user wants this done to their file. Also known as: 图片转 PDF, Imagen a PDF, छवि से PDF, صور إلى PDF, Imagem para PDF, Gambar ke PDF, Image vers PDF, Изображения в PDF, 画像からPDF, Bilder in PDF, 이미지를 PDF로, Ảnh sang PDF, Görüntüden PDF'e, 圖片轉 PDF, Immagini in PDF, ภาพเป็น PDF, Obrazy na PDF, Зображення в PDF, Afbeeldingen naar PDF, Imej ke PDF, Bilder till PDF, Εικόνες σε PDF, Изображения към PDF, Imatges a PDF, Picha kuwa PDF."
compatibility: "Needs curl 7.76+ and outbound HTTPS to pdf123.xyz, or PDFX_API_BASE pointing at a self-hosted pdfx-server."
---

# Image to PDF (PDF123)

Combine JPG/PNG images into a PDF.

Web version: https://pdf123.xyz/images-to-pdf · All tools: https://pdf123.xyz/skills/pdf123.md

## When to use

- Turn a phone photo into a one-page PDF for an upload portal
- Stack several scans as pages without reprinting them
- Keep original pixel dimensions instead of forcing A4

## Run it

Replace the sample file names and values with the user's, then run:

```bash
API="${PDFX_API_BASE:-https://pdf123.xyz}"
curl -sS --fail-with-body -X POST "$API/api/v1/convert/img/pdf" \
  -F "fileInput=@first.png" \
  -F "fileInput=@second.png" \
  --output-dir "pdf123-output/$(date +%Y%m%d-%H%M%S)" --create-dirs -OJ -w '%{filename_effective} %{content_type}\n'
```

## Inputs

Everything is `multipart/form-data`. The command above already sends each field with its default; keep them all and change only the values the user asked for, since some endpoints reject a missing optional field.

| Field | Type | Required | Default | Notes |
| --- | --- | --- | --- | --- |
| `fileInput` | file | yes | | .png, .jpg, .jpeg, .gif, .bmp (repeat the part once per file; order is kept) |

## Result

curl saves the result in a new `pdf123-output/<timestamp>/` directory under the server's file name and prints its path and content type. Several output files come back as one ZIP. Tell the user where the file is.

## Limits

- No fit-to-page, greyscale, or auto-rotate
- Transparent areas lose their alpha channel
- Not OCR; screenshots stay images
- SVG is a different endpoint
- Upload limit on this website: 500 MB per file, sent in chunks above about 95 MB. A single direct API request body is capped at 100 MB.

## Errors

- A non-zero curl exit means the request failed. The saved file then holds `application/problem+json`; read it and report its `detail` to the user instead of retrying blindly.
- `413`: the upload exceeds 100 MiB. `429`: wait for `Retry-After` seconds, then retry once.
- Send `X-API-KEY: $PDFX_API_KEY` only if the user has a PDF123 API key; anonymous calls work without it.

## Privacy

Files are uploaded to the API host, processed, and deleted once the response is sent. For confidential files, ask before uploading, or use a self-hosted server via `PDFX_API_BASE`.