Image to PDF Converter

How to Convert Images to PDF

Converting images to PDF is useful when you need a predictable printable document rather than a loose collection of image files. For poster work, it can also be a preparation step: collect reference images, scans, classroom handouts, or layout drafts into one PDF before deciding which image should become a tiled poster.

The converter runs in your browser and supports JPG, PNG, and WebP files. Each image becomes a page in the PDF. Choose paper size, orientation, and fit mode based on how the document will be printed, shared, or archived.

Fit vs. Fill — Which Mode Should You Choose?

Fit mode is best for documents, screenshots, diagrams, and scanned pages because it preserves the full image. It may add white space when the image and paper have different proportions, but no important edge content is lost.

Fill mode is best for photo-style pages where a full-bleed look matters more than preserving every edge. It can crop the image, so avoid it for maps, patterns, forms, and anything with text near the border.

Tips for Best Results

• For print-ready PDFs, use images with enough pixels for the target paper size.
• Keep all pages in the same orientation when the PDF will be printed as a packet.
• Use Fit for scans, forms, charts, and screenshots; use Fill only when edge cropping is acceptable.
• After creating the PDF, print one page first if exact scale or margins matter.

Need to print a large poster instead? Try our Block Poster tool to split any image across multiple pages and assemble a wall-sized print at home.

Print-Ready PDF Use Cases

An image PDF is most useful when the page size matters. Teachers can combine worksheets or classroom visuals into one document; crafters can keep reference photos with pattern notes; and home users can prepare a set of photos for consistent printing. Choosing A4, Letter, A3, Legal, or Tabloid before generating the PDF makes the file easier to print later because every page already has a predictable size.

For poster projects, this converter is best used for supporting documents rather than the tiled poster itself. Use it to collect design drafts, reference images, or scan pages into a single PDF. When you are ready to make one image large across multiple sheets, use the main Block Poster tool so margins, overlap, page labels, and final poster dimensions are calculated correctly.

If you plan to print the PDF, keep the source images close to the final page orientation and avoid screenshots that have already been compressed by chat or social apps. Clean source files produce smaller PDFs, sharper text, and fewer surprises in the print preview.

For multi-page documents, add images in the order you want readers to see them. The first image becomes the first PDF page, so it is worth checking the sequence before downloading. If a page needs to be replaced, remove that image and add the corrected version before generating the final file.

Avoid These PDF Printing Problems

• Do not mix portrait and landscape pages unless the printer preview confirms each page is rotating as expected.
• Use Fit for scans, diagrams, forms, and screenshots so important edge content is not cropped.
• Use Fill only for photos where a little edge cropping is acceptable.
• If exact scale matters, print one page first and check the physical size before printing the whole document.