A photo of a receipt for the accountant, three pictures of a contract for a landlord, a proof of address for an application: the other side wants one PDF, in order, that opens the same way on every device. Turning images into a PDF takes seconds and needs no account. The decisions that matter are page size, page order and where the conversion happens.
What a PDF fixes that a JPG does not
One file instead of several, so three photographed pages arrive as one document. A locked layout, so the page does not show up sideways or cropped depending on the viewer. And universal compatibility: it opens on Windows, Mac, Linux, Android and iPhone without a special app, which is why forms and offices ask for it.
In the browser, without uploading
The Images to PDF tool on this site converts in the browser; the page's code makes no request that carries your images.
- Drag the images in (JPG, PNG or WebP) or click Select images.
- Put them in order with the arrows next to each file.
- Choose the Page size: Fit to image makes each page exactly the image's size; A4 or US Letter places each image on a standard page, which is what you want if the PDF will be printed or filed with other A4 documents.
- Set Orientation (Auto follows each image) and a Margin, then click Images to PDF and download.
Because the conversion runs on your device, an ID card or a bank statement does not land on a server. You can confirm that for any site with the method in are online PDF converters safe.
Several images, one document
Add all the images at once, then arrange them: page 1, page 2, page 3. Drag the mistaken one out, put the cover page first. Fit to image keeps each photo full-bleed; a fixed size such as A4 is better when the images have different dimensions, because every page comes out the same shape. The recipient scrolls through the pages like a document instead of juggling twenty attachments.
When the thing is on paper: scan instead
If the pages are still paper, photographing them and converting is the slow way. A scanner app detects the edges of the sheet, corrects the perspective and brightens the page, then assembles the pages into a PDF. DocFlow Scanner is the Android app I build for that; it also runs Arabic and English OCR on the phone, so the PDF's text can be selected and searched, and nothing is sent anywhere to be scanned. The multi-page workflow is in scanning multiple pages into one PDF.
Three habits for a clean result
- Straighten before you convert. A tilted photo stays tilted in the PDF.
- Light, not filters. Even, shadow-free light does more for readability than any enhancement.
- Size the images first. Phone photos are 4000 pixels wide and a dozen of them make a heavy PDF. Run them through the image compressor before converting if the file has to be mailed or uploaded; the reasoning is in how to compress a PDF.