How to organise multiple images into a single PDF

Four decisions shape the whole document, and it is far easier to make them up front than to fix them afterwards: the page size (A4, Letter, A5 or a custom size), the orientation, how each image fits the page, and whether margins are wanted. Getting these right at the start means the file you download is already the file you need.

• **Page size** — match what you will print on or what the receiver expects. A4 is the common default outside North America; Letter is common in the US and Canada. See PDF page size and orientation.
• **Orientation** — portrait suits documents and single photos; landscape suits wide images and slides.
• **Fit** — scales the whole image inside the page, centred, keeping its shape. The safe default.
• **Cover** — fills the page and crops the overflow. Useful when a page must not have white bands.
• **Margins** — leave a border so nothing is lost to printer edge limits. Many printers cannot print to the very edge of the sheet.

1. 1Add your images to Image to PDF in the order you want them to appear — the file list order becomes the page order, so arrange it before converting rather than after.
2. 2If two images have different shapes and you want them to look consistent, crop them to a common ratio first with Crop Image; otherwise fit mode will centre different shapes differently.
3. 3Choose page size, orientation, fit mode and margins, then generate the PDF.
4. 4Flip through every page of the result. Check the order, check that nothing important was cropped by cover mode, and check that no page came out rotated.
5. 5If the order is wrong afterwards, fix it with Reorder PDF pages rather than rebuilding.

Applications often require photographs and multi-page scans in one file. Convert the images to a PDF first, then join it to the scanned PDFs with Merge PDF — or use Application Document Pack, which accepts images and PDFs together and lets you order every page before exporting one document. If a scanned page arrives sideways, rotate it in place with Rotate PDF pages before merging so you do not have to revisit the whole file later.

Merging keeps each page's original dimensions, so a merged file can legitimately contain mixed page sizes. If the receiver requires uniform pages, convert everything to one page size in Document Print Prep first.

• **Pages appear in the wrong order** — the file list order was not what you assumed. Use Reorder PDF pages.
• **An image is cropped at the edges** — cover mode was selected. Switch to fit.
• **A page is much smaller than the rest** — the source image had different dimensions and you chose an exact-size option. Regenerate with fit mode.
• **The file is unexpectedly large** — the source images were still at camera resolution. Compress the images first, then rebuild.
• **Text in a scanned page is not searchable** — this pipeline embeds images as pictures; it does not run OCR. PDF to Text can read text afterwards where a text layer exists.