如何將圖片轉換為 PDF — JPG、PNG 及其他格式

PDFs are the universal document format. Converting images to PDF is useful when you need to: email multiple photos as one attachment instead of many, create a printable photo booklet or portfolio, submit scanned documents (photos of receipts, IDs, or forms) in PDF format, or archive images in a format that preserves layout across devices.

Unlike sharing raw image files, PDFs maintain consistent page sizing and orientation regardless of the recipient's device or operating system.

1. Open the WhiskFile JPG to PDF tool (also accepts PNG, WebP, and other formats).

2. Upload your image by clicking "Choose file" or dragging it onto the upload zone.

3. The tool automatically converts the image and wraps it in a PDF page sized to match the image dimensions.

4. Download the resulting PDF file.

1. Open the WhiskFile JPG to PDF tool.

2. Upload all the images you want to combine. You can select multiple files at once or drag them in batch.

3. Reorder the images by dragging them into your preferred sequence.

4. Click "Convert to PDF". All images are combined into a single multi-page PDF, with one image per page.

5. Download the combined PDF.

To further organize the result, use the Organize PDF tool to reorder, rotate, or delete pages after conversion.

JPG is the most common format for photos. It produces smaller files but uses lossy compression.

PNG is best for screenshots, diagrams, and images with text — it uses lossless compression and preserves sharp edges.

HEIC is the default format on iPhones. WhiskFile converts HEIC to PDF directly — no need to convert to JPG first.

WebP is a modern format used by many websites. WhiskFile handles WebP to PDF conversion natively.

All formats produce identical PDF quality. The choice of input format does not affect the output PDF.

If the resulting PDF is too large (common when converting high-resolution photos), run it through the WhiskFile Compress PDF tool after conversion. This can reduce the file size by 40–70% while maintaining visual quality suitable for screen viewing and standard printing.