Image to PDF for Scanned Documents

Prepare the images first

A PDF made from images is only as readable as the images you add to it. Before combining them, check orientation, cropping, brightness and order. If one page is sideways or blurry, the final PDF will preserve that problem.

For forms, receipts and notes, readability matters more than file size. For photos or quick references, a smaller file may be more important. Decide that before choosing quality settings.

• Rename or sort images before uploading them to the tool.
• Rotate pages that are sideways.
• Crop large backgrounds if the document is hard to read.

Choose page size and margin

A4 and Letter are both common page sizes, but they are not the same. A4 is common in many countries, while Letter is common in the United States. Margins help when the image should not touch the page border, especially for printing or forms.

• Use A4 for general international documents.
• Use Letter when the receiver expects that size.
• Use small margins for scanned pages that need breathing room.

Keep order predictable

When a PDF contains several images, page order becomes part of the document. Put the cover, front side, back side and supporting files in the sequence you want before generating the PDF. After downloading, open the file once and verify the page order.

• Add images in the intended sequence.
• Review the PDF before sending it.
• Keep originals until the receiver confirms the file is acceptable.

Understand the limits

An image-based PDF is not the same as a text PDF. The text inside a photographed or scanned page is usually not selectable unless OCR is applied by another tool. This page focuses on combining images into a document, not on recognizing text or editing existing PDFs.

• Use clear photos or scans for better readability.
• Do not expect searchable text unless OCR is applied elsewhere.
• Avoid very large batches on older mobile devices.