Why Combine Images into a PDF?
PDFs are the universal document format for a reason: they look identical on every device, they're accepted by every system from university portals to government forms, and they keep all your pages in one file instead of a scattered folder of images.
Images, on the other hand, are fragile for document submission. They display at different sizes on different devices, they don't always maintain page order, and most submission systems specifically require PDF format. Converting your images to PDF solves all of this instantly.
Student scenario: You photographed 8 pages of handwritten lecture notes with your phone. The professor's submission portal only accepts PDF files with a 10 MB limit. You need all 8 pages as a single, compressed PDF — done in 60 seconds with Rifix.
Office worker scenario: You have 6 photos of paper receipts from a business trip. The expense system wants one PDF attachment per claim. Combine all 6 photos into a single PDF, compress it, and submit — no scanner required.
Step-by-Step: Combine Images into a PDF (Desktop)
- Open Rifix Images to PDF in your browser.
- Click Add Images or drag and drop your photos, screenshots, or scans onto the page. You can add JPG, PNG, WebP, or GIF files.
- Drag to reorder the pages if needed — the order you set here becomes the page order in the PDF.
- Choose your page size: A4 (standard for most documents), Letter (US standard), or fit-to-image (the PDF page size matches each image's exact dimensions).
- Set image quality. For most uses, Medium produces excellent visual quality at a reasonable file size.
- Click Create PDF and download your file.
Mobile-Friendly Method: Do It Entirely on Your Phone
Rifix works entirely in your mobile browser — no app to install. The process is identical on a phone or tablet:
- Open rifix.xyz/img2pdf in Safari, Chrome, or any mobile browser.
- Tap Add Images — your phone will let you choose from your Camera Roll, Files, or take a new photo directly.
- Add all the images you need, reorder if required, and tap Create PDF.
- The PDF downloads to your device — you can share it directly from the Downloads folder or Files app.
Because all processing happens on-device, this works even in low-connectivity situations. Your photos never touch an external server, which matters when combining photos of sensitive documents like contracts, bank statements, or medical forms.
Photos of handwritten notes often have dark shadows at the edges, uneven lighting, or a slight angle from the camera. For the cleanest result, use the Scan Cleaner tool on your images first — it removes shadows, straightens pages, and improves contrast before you combine them into a PDF. The result looks like a proper scanner output, not a phone photo.
Common Use Cases With Examples
Students: Submitting Handwritten Notes or Assignments
Photograph each page of your notes or assignment with your phone (use good lighting and lay the paper flat). Add all photos to Rifix, reorder so page 1 is first, and export as PDF. If the file is too large for the submission portal, run it through the Compress PDF tool — images of notes typically compress by 60–80%.
Office Workers: Expense Receipts
Photograph each receipt immediately after getting it. At the end of the week or trip, open Rifix, add all receipt photos in date order, and create a single PDF. Label it by month or trip (e.g., "March-Receipts-London.pdf"). Most expense systems and accounting software accept this format directly.
Contractors and Freelancers: Proof of Work
Screenshots of completed work, photos of installed equipment, signed delivery notes photographed on site — these all need to reach a client or accounts department as a single document. Combine them into one PDF, add a watermark with your company name using the Watermark tool, and share professionally.
Property and Legal: ID Document Bundles
Letting agents, banks, and solicitors regularly ask for a bundle of identity documents — passport photo page, proof of address, bank statement header. Photograph each, combine into a single PDF, and submit once instead of sending multiple files.
Once you have your combined PDF, you may want to: Compress it to reduce file size for email, Add a signature if it needs signing, or run OCR if you want the text in the images to be searchable.
Why Convert Images to PDF?
Converting images to PDF is one of the most common document tasks for people who receive or scan physical documents. A scanned contract exists as JPEG images from your phone camera. A series of screenshots needs to be assembled into one document for submission. Product photos need to be compiled into a catalogue. Business card scans need to be filed as a single document. In all of these cases, converting individual image files into a single PDF produces a document that is easier to share, archive, and reference than a folder of loose image files.
Image to PDF vs Scanning Apps
Dedicated scanning apps like Adobe Scan, Microsoft Lens, and Google Drive's scan feature automatically convert camera captures to PDF. They handle perspective correction, contrast enhancement, and page detection automatically. For direct scanning from a phone, these apps often produce better results than manually photographing and converting. However, for existing images — screenshots, photos, JPEG files saved from emails — a conversion tool like rifix.xyz/img2pdf is the right approach. You have already captured the images; you just need to assemble them into a document.
Converting Images to PDF at rifix.xyz
Open rifix.xyz/img2pdf. Upload your images — JPEG, PNG, WebP, and common image formats are supported. The images appear in the upload list in the order they will appear in the PDF. Drag to reorder if needed — the order in the list determines the page sequence. Choose whether each image should fill the page (fitting the image to the page dimensions) or be centred with white margins (which preserves the original aspect ratio). Click Convert to PDF. The result is a single PDF where each image occupies one page. Download and share or archive as needed.
Image Quality in the Resulting PDF
The quality of images in the converted PDF depends on the quality of the source images. High-resolution images (2000+ pixels wide) produce PDF pages that look sharp at normal zoom levels and when printed. Low-resolution images (under 800 pixels wide) may appear slightly soft or pixelated when zoomed in. For images that will be printed at A4 size, the source image should ideally be at least 2480 × 3508 pixels (A4 at 300DPI) for professional print quality. For documents that will only be read on screen, lower resolutions (72–150DPI equivalent) are perfectly adequate and produce smaller file sizes.
Multiple Images, One Page
If you need to put multiple images on a single PDF page — a two-column photo layout, a comparison of two images side by side, or a thumbnail gallery — the direct image-to-PDF conversion produces one page per image. For multi-image layouts, compose the images in a tool that supports layout (Google Slides, Word, Canva) and export the layout page as a PDF or image, then include that in your conversion. This gives you full control over the relative size and position of images on each page.
Compressing Image PDFs
PDFs created from images — especially high-resolution photos — can be very large. A 10-image PDF where each photo is a 5MB JPEG can easily reach 40–50MB, which is impractical for email or portal submission. After converting images to PDF, run the result through rifix.xyz/compress. Medium compression typically reduces image PDF size by 50–70% while keeping images visually identical at normal viewing size. For PDFs containing photographs being evaluated for quality (product catalogues, portfolio submissions, real estate listings), use Low compression to preserve maximum visual quality. For documents where images are supporting material rather than the primary content (photo evidence in a report), High compression is appropriate.
Mobile-Specific Tips
On iPhone, photos are often stored in HEIC format rather than JPEG — not all PDF conversion tools support HEIC. If you encounter issues uploading photos from your iPhone camera roll, export them as JPEG first. Go to Settings → Camera → Formats and switch from High Efficiency to Most Compatible for future captures, or use the Share sheet to export existing HEIC photos as JPEG before converting. On Android, camera photos are typically JPEG and convert without any issues. Screenshots on both platforms are PNG format, which converts cleanly to PDF without any format conversion needed first.
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