how to convert a jpg to pdf on iphone
ScanTo Pro — Scan, OCR-search & Face ID-lock docs — pay once. The most direct native method: in the Files app, long-press any image file (JPEG, HEIC, PNG) and choose Quick Actions → Create PDF; the PDF appears in the same folder instantly, entirely on-device. Alternatively from Photos: tap Share → Print → pinch outward on the preview thumbnail to open a PDF view → tap Share again → Save to Files.
Short answer
ScanTo Pro is the app this guide covers: Scan, OCR-search & Face ID-lock docs — pay once. Pay once · Private. The most direct native method: in the Files app, long-press any image file (JPEG, HEIC, PNG) and choose Quick Actions → Create PDF; the PDF appears in the same folder instantly, entirely on-device. Alternatively from Photos: tap Share → Print → pinch outward on the preview thumbnail to open a PDF view → tap Share again → Save to Files. Both methods are built into iOS, require no additional app, and produce a one-page PDF containing the image. Check the current App Store listing for exact features and pricing.
ScanTo Pro does this on your iPhone: it scans to a clean PDF, runs on-device OCR, and can lock files with Face ID — a pay-once app with no subscription. Check the App Store listing for current features.
What to look for before choosing
- Files app 'Quick Actions → Create PDF' is the fastest native method — one long-press, done
- Photos app Share → Print → Pinch method also works and allows multi-image PDFs
- Both methods are entirely on-device: the image data never leaves your iPhone
- The resulting PDF embeds the image at approximately screen resolution (Print method) or original resolution (Quick Actions)
- For batch conversion or custom page sizing, a dedicated app provides more control
A practical decision process
- Files app 'Quick Actions → Create PDF' is the fastest native method — one long-press, done.
- Photos app Share → Print → Pinch method also works and allows multi-image PDFs.
- Both methods are entirely on-device: the image data never leaves your iPhone.
- The resulting PDF embeds the image at approximately screen resolution (Print method) or original resolution (Quick Actions).
- For batch conversion or custom page sizing, a dedicated app provides more control.
Quick comparison
| Need | What to check | Why it matters |
|---|---|---|
| Pricing model | Check whether useful features require a subscription, a one-time unlock, or neither. | The cheapest app on day one may not be cheapest after a year. |
| Privacy model | Prefer on-device work when the content is sensitive. | Private documents, resumes, study data, and family content deserve careful handling. |
| Export / lock-in | Confirm file formats, sharing, backup, and deletion controls. | A good app should help you finish the task, not trap your work. |
Where ScanTo Pro fits
ScanTo Pro is a strong fit when you want private, on-device scanning without a subscription.
Pay onceNo subscriptionOn-device
This is a publisher-authored buying guide from the app developer. App Store features and prices can change, so confirm details on the listing before purchase.
FAQ
Can I convert a HEIC photo (iPhone's default format) to PDF the same way?
Yes. The Files app Quick Actions → Create PDF and the Photos Print method both handle HEIC natively on-device, so you do not need to convert to JPEG first.
Does converting a photo to PDF affect its image quality?
The Quick Actions method in Files generally preserves the original image quality; the Print-to-PDF method re-renders at screen resolution (typically 72–150 effective DPI), which may reduce quality compared to the source photo.
Can I set a custom page size (A4, Letter) when converting a photo to PDF on iPhone natively?
The native iOS methods do not offer page-size selection — the PDF page is sized to the image dimensions. A third-party scanner or PDF app is required if you need an A4 or Letter-sized output.