Assignment photos to 1 PDF on your phone, before the deadline

Shoot so the handwriting survives

The PDF can only be as readable as the photos. 5 minutes here saves the resubmission.

• Daylight or a bright ceiling light, and no flash: flash leaves a glare spot where the pencil disappears.
• Straight from above, phone parallel to the paper. A slanted shot makes the far lines small and the near lines huge.
• 1 page per photo, filling the frame with a little desk showing round the edge, so nothing is cut off.
• Pen beats pencil. Light pencil on lined paper is the hardest thing to photograph; go over faint working in pen if the course allows it.

Number the pages before you shoot

Write the page number in a corner of every sheet, “1 of 8”, “2 of 8”, before you take a single photo. Then the order fixes itself: you shoot them in that order, you can see the number in each thumbnail, and the marker never meets page 7 before page 2. If one page goes missing, the gap shows.

Convert on your phone, step by step

1. Open JPG to PDF in Chrome or Safari, or use the tool above.
2. Tap Choose files and pick the page photos from your gallery or Photo Library. Select all 8 at once if your picker lets you.
3. Check the order in the file list. It is the page order. Photos are named by the time they were taken, so shooting in page order usually means the list is already right. Fix anything else with Up and Down, and Remove a duplicate.
4. Paper: A4 (US Letter in the US), Orientation: Portrait, Margin: 5 mm, Fit: Fit. Every page the same size, the whole sheet showing, nothing cropped.
5. Tap Make the PDF, then Download PDF. Rename it as your course asks, for example cooper-jane-essay-3.pdf, in the Files app.

Photos taken upright stay upright: the converter reads the turn your camera recorded in each photo. If one still comes out sideways (why that happens), fix just that page with Rotate PDF: under Pages choose Some, type the page number, pick 90° right or 90° left, and press Rotate.

Over the portal’s limit: what actually shrinks it

Phone photos are big. Our test set, 8 handwritten pages photographed at 12 megapixels, came to 17.6 MB, and the PDF was 17.6 MB too, because the converter copies JPG photos in unchanged. Course portals set their own limits, often a few MB per file, and the assignment page usually says. Check it, then:

1. Open Compress PDF and drop the PDF.
2. Under Size target, type the limit and pick MB or KB. The tool searches for the best picture quality that fits under it and ignores the preset.
3. Press Compress. The result says the size before and after and the resolution it used.

Measured on our 8 handwritten pages, in colour and turned grey first with Grayscale PDF:

So grayscale is not the big lever it is often said to be: on its own it took 25 percent off, and after compression it saved about 13 percent. Use it when the course wants black and white, or to squeeze the last few hundred KB under a tight limit. Our test pages, written large in a handwriting-style font, read cleanly at both 150 and 110 dpi; small writing and faint pencil soften sooner, so zoom in on the result before you submit. The make a PDF smaller guide explains what each setting gives up.

The 60-second check before you submit

Open the downloaded PDF, not the photos, and check:

1. Page count: the number of pages equals the number on your last sheet.
2. Order: the numbers you wrote run 1, 2, 3 without a gap.
3. The right way up: no sideways or upside-down page.
4. Readable: zoom into page 1 to the size of your smallest writing, a formula or a footnote. If you can read it on your phone, the marker can on a screen.
5. The right file: the compressed copy, with the name the course asks for, not the 17 MB original.

The honest part

A photographed page never looks like a scan. There is always a little slant, shadow and grey paper, because this converter places each photo as it is. It does not straighten, crop or whiten the page. A scanning app that corrects perspective gives a cleaner page; if your course explicitly demands scans, use one, and see scanned PDF to searchable for making the text searchable afterwards.

It cannot rescue a blurry photo. Compression makes files smaller, never sharper. Retake any page you cannot read at full zoom.

The writing is a picture, not text. The marker can read it, but a plagiarism checker or a search cannot. If the course requires typed or searchable work, a photo PDF does not meet it, whatever the tool.

Nothing is uploaded. The photos and the PDF stay on your phone; there is no account and no watermark on your work. Got the pages from a classmate on WhatsApp? The WhatsApp images guide covers saving them first, and the Android photos guide has more on the phone side.