School requires you to submit homework, application forms, or permission slips as a PDF, but all you have are JPG photos from your phone — this is a common headache for students and parents alike. Android phones have limited built-in conversion features compared to iPhones, which have the Files app for direct conversion, so you'll need to take an extra step. Here are several methods, ranging from built-in features to online tools — just pick whichever works best for your situation.
Method 1: Use Google Photos' "Print" Feature to Save as PDF
This method requires no third-party app at all. As long as you have Google Photos on your Android phone, you're good to go.
Steps:
- Open Google Photos and find the photo you want to convert
- Tap the three-dot menu in the upper right corner and select Print
- Choose Save as PDF as the printer (this is Android's built-in virtual printer)
- Adjust the paper size (A4 is recommended) and orientation (portrait or landscape)
- Tap the download icon — the PDF will be saved to your phone's Downloads folder
Limitation: This method converts only one photo into one PDF at a time. If you have multiple photos (for example, a homework assignment spread across several pages), you'll need to repeat the process for each one and then merge them separately. More on merging multiple photos later.
Method 2: Use an Online Tool — Get It Done Right in Your Browser
If you'd rather not install an app but still want to handle multiple photos at once, using an online tool in your mobile browser is the most straightforward option. Just head to the JPG to PDF tool, upload your photos, arrange the order, and download the PDF — all without leaving your browser.
How it works:
- Open JPG to PDF in Chrome (or any browser) on your Android phone
- Tap Upload Files and select your photos from your gallery or file manager — you can select multiple photos at once
- After uploading, drag and drop to reorder the pages (e.g., put the cover page first, then the rest)
- Confirm the orientation looks correct, then tap Convert
- Download the resulting PDF and send it directly via Gmail or any other app
This method is especially handy when your homework spans 3–5 pages — handle everything in one go without having to merge files afterward.
What if a photo is sideways?
Sometimes you accidentally shoot in landscape mode, but the document is portrait-oriented, making it look off after uploading. In that case, convert the photos to PDF first, then use the Rotate PDF tool to fix the orientation. It supports 90°, 180°, and 270° rotation and takes just a few seconds.
Method 3: Use a Scanning App First for Better Clarity, Then Convert to PDF
If you're submitting official documents — such as a copy of a household registration certificate or a signed permission slip — it's worth using a scanning app first to get a cleaner image before converting to PDF.
Popular free options include:
- Microsoft Lens — automatically detects document edges and corrects perspective, so shots look like they came from a scanner
- Adobe Scan — simple interface with direct PDF output
- Google Drive's scan feature — open Drive → tap + in the bottom right → tap Scan
These apps typically output PDF files directly, so no additional conversion is needed. However, if the PDF they produce is too large (many schools have file size limits for uploads), use the Compress PDF tool to shrink it down — this makes emailing or uploading to school systems much smoother.
How to Combine Multiple Documents into One PDF
Schools sometimes ask you to "combine all materials into a single PDF" — for example: the completed assignment, a parent-signed permission slip, and both sides of an ID card.
In that case, convert each document to PDF separately, then use the Merge PDF tool to combine them into one file. The process is intuitive: upload multiple PDFs, drag to reorder, click merge, and download. The entire workflow can be done on your phone — no computer needed.
A Few Things to Double-Check Before Sending to School
1. Check the file size School email systems typically cap individual attachments at 5–10 MB. Photos taken on a smartphone tend to be high resolution, and converting them directly to PDF can easily push the file over the limit. If that happens, run it through Compress PDF.
2. Use a clear, descriptive file name
After downloading, rename the file to something meaningful — for example, John_Smith_Grade2A_BookReport.pdf. This makes it easier for the teacher to organize submissions and reduces the chance of your email being flagged as spam.
3. Verify orientation and page order Before sending, preview the PDF in your phone's PDF viewer (or just open it in your browser) to make sure every page is right-side up and in the correct order.
4. How to send Attaching the PDF directly in Gmail works fine. If the file is still too large, upload it to Google Drive first and share a link with the teacher instead — they can view it by clicking the link without any email size restrictions.
Sending a PDF from Your Android Phone Really Isn't That Hard
Take the photos → upload to JPG to PDF → download → send. The whole process takes under three minutes. If you need to combine multiple documents, just add a Merge PDF step. No app installation, no computer — your mobile browser handles everything. Next time school sends home a notice asking for documents, you won't have to scramble for the right software.