It's 11 PM. Your college assignment is due at midnight. You've got 5 photos of handwritten notes and you need them in a single PDF. Or maybe HR needs your ID proof as a PDF and you only have photos on your phone.
Whatever the situation, here's how to turn images into a PDF on your mobile phone.
📱 On Android: Arcanize App (Best Experience)
The Arcanize App is built specifically for this. It gives you two ways to create PDFs:
Option A: Convert Gallery Photos to PDF
Got existing photos you want combined into a single document?
1. Download Arcanize from the Play Store
2. Tap Images to PDF
3. Select your photos from the gallery
4. Drag and drop to arrange pages in the right order
5. Tap Convert — your PDF is saved to your phone
Option B: Scan Physical Documents
Need to digitize paper — ID cards, receipts, notes, bills?
1. Open Arcanize → tap Scan Document
2. Point your camera at the paper — the app auto-detects edges and crops
3. It enhances the text, removes shadows, and sharpens the scan
4. Save as PDF — done
Why Arcanize?
- 📸 Smart scanner with auto edge detection and text enhancement
- 🖼️ Gallery to PDF — select 20 photos, arrange them, convert in one tap
- 📦 Built-in compressor — if the PDF is too large for email, compress it right there
- 🔒 100% offline — your personal documents and photos never leave your device
- ✅ No watermarks, no subscriptions — completely free
🌐 On iPhone or Desktop: Arcanize Web Tool
If you're on an iPhone or working on a computer, use the Arcanize Images to PDF web tool:
1. Open arcanizepdf.com/tools/image-to-pdf in Safari or Chrome
2. Tap Select Images and pick your photos
3. Drag to rearrange the page order
4. Tap Convert to PDF
5. Download your file
No sign-up, no watermarks, no file size limits. It processes everything inside your browser — your photos never get uploaded to any server.
⚡ Pro Tips for Clean PDFs
- Lighting matters. When scanning paper, natural daylight or a desk lamp directly overhead gives the sharpest results. Avoid scanning under tube lights — they create uneven shadows
- Keep it steady. If your hands shake, prop your phone against something. A blurry scan is worse than a photo
- Compress before sharing. WhatsApp caps file transfers at 2GB but email attachments are usually limited to 25MB. If your PDF is too big, use the compressor built into the Arcanize app or the Arcanize Compress tool
❓ Frequently Asked Questions
Can I convert photos to PDF on iPhone without any app?
Yes! Use the Arcanize web tool in Safari — no app needed. It works directly in your browser and processes files locally.
Will converting photos to PDF reduce image quality?
Not with Arcanize. It preserves the original resolution of your images by default. Compression (if you choose to apply it) is a separate step where you control the trade-off between size and quality.
How do I arrange pages in the correct order?
In both the Arcanize web tool and the app, you can drag and drop images to rearrange them before converting.