PDF5 min read

How to convert multiple images to PDF in order

You have eight photos of receipts, transfer screenshots, and a scanned proof, and the reimbursement form asks for "a single PDF with all receipts in chronological order." Pasting them into Word is a nightmare of page breaks. Going from image to pdf in the right order should take minutes, not an afternoon.

The difference between sending loose photos and an ordered PDF is that whoever reviews your request sees a clear story: March 3 through the 15th, with no attachments lost in the email thread. FORMARTIO converts several images into one PDF in the browser, with no programs to install and no accounts to create.

What images you can combine into a PDF

JPG and PNG from your phone, screenshots, home scans, and even mixes of both. What matters is that they read well: if the text is illegible in the photo, it will not be in the PDF either.

Rename files with the date before uploading — 2026-03-10-taxi.jpg — so alphabetical order matches chronological order. That saves unnecessary dragging.

Step by step: convert images to PDF

  1. Open Image to PDF on FORMARTIO.
  2. Upload all images at once or add them one by one. Check thumbnails if they are available.
  3. Reorder with drag and drop until the sequence makes sense — by date, expense type, or chapter, depending on your case.
  4. Adjust orientation if a photo arrived rotated; better to straighten here than in another program later.
  5. Generate the PDF, download, and flip through page by page before submitting the reimbursement.

Tips for reimbursements and paperwork

Include a table of contents page only if the rules require it; otherwise do not lengthen the file for no reason. Fewer pages, faster review.

Compressing images before combining them reduces the final PDF weight. Useful when the portal has a strict megabyte cap.

For official documents with front and back, upload the front first and then the back of each document before moving to the next. Whoever validates identity will appreciate it.

Image to pdf vs. single jpg to pdf

If it is one photo, JPG to PDF is enough. When there are several and order matters, the multi-image tool is the right choice. Then you can compress or split the result if needed.

Need to edit text afterward? Try OCR on images with lots of text. For visual receipts, the image PDF is sufficient.

Travel reimbursement: an order that usually works

Tickets and boarding passes first, then taxis by date, then hotel and meals with receipts. Close with a summary on a separate sheet only if they ask for it. That order helps the reviewer match dates without emailing you for clarifications.

If a photo came out dark, retake it with flash or by a window before you convert images to pdf. An ordered but illegible PDF gets your form sent back just like loose photos would.

If the portal returns a size error, compress the resulting PDF before retrying. Order and legibility first; megabytes second.

If an image looks blurry in the final PDF, go back to the original file, take a better photo with natural light, and repeat the conversion. Compressing afterward is safer than uploading an already degraded screenshot.

Next time you pile screenshots into a folder called "March reimbursement," do not attach them one by one. Convert your images to PDF on FORMARTIO in the order the form asks for and send one clean file.