This Image to PDF converter turns ordered JPG, PNG, WebP and GIF files into one PDF in your browser. Each image becomes a page. You can rearrange and rotate the sources, choose the paper and margins, decide whether the whole image must remain visible, preview the generated document and download the actual result.

The useful decision is not simply whether the output ends in .pdf. A good result also needs the correct page order, readable orientation, predictable white space and enough image quality for its destination. A photo album, an application document and a set of scanned receipts can all start as images, but they do not need the same page layout.

This page keeps those decisions visible. It also warns when Fill the page is expected to crop an image and reports which generated pages were actually cropped. That distinction helps you judge the PDF before sharing or printing it.

How to convert images to PDF online

Choose one or more images. Add up to 30 JPG, PNG, WebP or GIF files. A single file creates a one-page PDF; several files create a multi-page document.
Check the order. Read the numbered cards from left to right and top to bottom. Drag a card or use its arrow buttons to move it earlier or later.
Correct sideways pages. Rotate an individual source left or right in 90-degree steps. The displayed pixel dimensions update when width and height exchange places.
Choose the page layout. Select A4, US Letter, US Legal or Match each image. Standard paper can use automatic, portrait or landscape orientation.
Choose margins and image fit. Fit whole image preserves every edge. Fill the page removes empty space but can crop the image where the page and source ratios differ.
Choose page encoding. Balanced PDF is the practical default. High-quality PDF uses less JPEG compression. Lossless pages use PNG and can create a much larger file.
Name the document. Set the downloaded filename and optional PDF title metadata. Turn on page numbers when readers need visible sequence markers.
Create and inspect. Review the PDF preview, crop report, file size, page order and metadata notes before downloading.

Changing the source order, rotation or any output setting clears the old result. This prevents a previously generated file from being mistaken for the controls currently shown on the page.

Combine and merge images into one PDF in the right order

Searches such as combine image to PDF, merge image to PDF and image to PDF merge usually describe the same core task: several separate pictures should become one ordered document. On this page, each source creates exactly one PDF page.

The order shown before conversion is the output order. This is important because multi-file selection from a device does not always return files in the narrative order a person expects. Filenames such as scan-1, scan-2 and scan-10 can also sort unexpectedly in other applications.

Use drag-and-drop when pointer movement is convenient. Use the up and down buttons when working on a touch screen, with a keyboard or when moving a page only one position. Both controls change the same underlying sequence.

Rotation is stored per image rather than applied to the whole document. A wide chart can remain landscape while the surrounding letters stay portrait. This is more useful than forcing every source into one direction when a document contains mixed material.

Before conversion, check three details:

The first card is the page that should open first.
Every page containing text is upright.
Repeated or unwanted images have been removed.

This tool does not merge content onto the same page or create a collage. “Merge” means placing the selected images into one PDF, one image per page.

Choose page size, orientation and margins

The page setting determines the PDF page itself. It is separate from the number of pixels in the image.

Page option	Useful when	Behavior on this page
Match each image	The document should follow each source shape	Creates a page around each image at the selected pixels-per-inch scale
A4	The destination expects common international office paper	Uses A4 pages and the selected orientation
US Letter	The destination expects common North American office paper	Uses 8.5 × 11 inch pages
US Legal	The destination expects a longer North American page	Uses 8.5 × 14 inch pages

Auto per page chooses portrait or landscape from each prepared image. That means a PDF can contain both orientations while retaining one paper standard. Choose fixed portrait or landscape only when the receiving workflow requires every page to have the same direction.

Margins create space between the image and page edge. None maximizes the available area. Narrow, Normal and Wide correspond to 0.25, 0.5 and 0.75 inch on the generated PDF page. A printer may still impose its own non-printable area, so a zero-margin PDF does not guarantee borderless physical printing.

When Match each image is selected, the pixels-per-inch value changes the physical page size calculated from the same source pixels. It does not create, remove or sharpen pixels. For example, the same 1500-pixel-wide image produces a wider physical page at 150 pixels per inch than at 300 pixels per inch.

That setting is useful when image dimensions already represent a planned scan or print scale. For most upload forms, A4 or Letter is easier to predict because the physical page remains fixed.

Fit the whole image or fill the PDF page

The page and source often have different aspect ratios. A phone photo may be much taller than Letter paper, while a screenshot may be much wider.

Fit whole image

Fit whole image scales the source until its complete width and height are inside the available page area. No source edge is intentionally removed. Empty white space can remain on two sides.

Choose this mode for forms, diagrams, certificates, screenshots and scanned documents where every visible detail matters. It is the safer default because it preserves the complete prepared image.

Fill the page

Fill the page scales the source until the available page area is covered. If the ratios differ, part of the image extends beyond the PDF page and is clipped.

Choose this mode for photographic pages where edge-to-edge visual coverage matters more than preserving every pixel. Do not use it casually for text, signatures, receipts or identity documents.

The form estimates how many pages will crop before conversion. The result repeats the count using the actual generated layout and marks each cropped page in the order list. This directly connects the layout principle to the tool: when the warning appears, rotate the source, change the page orientation or switch to Fit whole image before downloading.

Choose PDF image quality without guessing what it means

This tool prepares fresh image data for every PDF page. The three modes control that page-image encoding; they do not change the PDF page order or paper size.

Balanced PDF

Balanced PDF converts each prepared page to JPEG at 82% quality. It is intended as a practical starting point for photos, mixed screenshots and documents where a moderate file size matters.

Transparent PNG or WebP pixels are composited onto white because JPEG has no transparency. Inspect logos, shadows and graphics that were designed for a colored background.

High-quality PDF

High-quality PDF uses JPEG at 94%. It usually creates a larger file and may retain more fine photographic detail than Balanced PDF. It still cannot restore detail missing from the source or reverse earlier JPEG compression.

Lossless pages

Lossless pages encode every prepared page as PNG. This preserves transparent pixels and avoids a new lossy JPEG step, but detailed photographs can make the PDF substantially larger.

The white PDF page remains visible behind transparent pixels. “Preserves transparency” therefore does not mean that a PDF viewer will show a transparent window through the document.

Browser image preparation uses Canvas before the page data is embedded. The behavior of Canvas export formats is described by MDN's toBlob() documentation. The PDF itself is assembled with the browser-compatible pdf-lib library, which supports creating documents and embedding PNG or JPEG image data.

Turn scanned images into a PDF

The phrase scan image to PDF can mean two different tasks.

If a scanner or phone app has already produced JPG, PNG, WebP or GIF files, this tool can arrange those image files into one PDF. Use Fit whole image, check every page is upright and choose A4 or Letter when the receiving system expects a standard document page.

If you need to capture paper with a camera, detect page boundaries, correct perspective, remove shadows or recognize text, that is a scanning workflow rather than simple image-to-PDF conversion. This page does not access the camera or perform those corrections.

The generated PDF contains image pages. It does not run optical character recognition, so words visible in a scan do not become selectable or searchable text. A larger image or Lossless pages setting also does not add an OCR text layer.

For documents with small text, inspect the full PDF preview and then open the downloaded file at a realistic zoom. Confirm that characters, signatures, dates and thin lines remain readable. Use High-quality PDF or Lossless pages when the Balanced result visibly damages important detail.

Check the created PDF before downloading

The result area displays the actual generated PDF Blob, not a mockup. Start with the preview:

Move through the pages and confirm their order.
Check portrait and landscape pages independently.
Look at all four edges on any page marked Cropped.
Confirm transparent graphics look acceptable on white.
Check page numbers do not compete with the content.

Then read the report:

Page count: should equal the number of source images.
Document title: is the title written into the generated PDF metadata.
Page layout: states the paper, orientation strategy, margin and fit mode.
Image encoding: identifies the selected JPEG or PNG page preparation.
Crop check: reports whether Fill the page removed edges.
Source size and PDF size: are actual byte counts, but they should not be expected to match. Encoding and PDF structure change the result.
Source metadata: is not copied. The page images are newly prepared, so original EXIF, GPS and image-file metadata are not transferred.

The browser's embedded PDF viewer can differ across desktop and mobile devices. The downloaded file is the final artifact. Open it separately before submitting a document to an important third-party system.

Illustrative Image to PDF examples

Combine four phone photos into an application PDF

Assume four portrait JPG photos show consecutive pages of a signed form. Arrange them from page one to page four, rotate any sideways source, choose A4, Auto per page, Narrow margin and Fit whole image. Balanced PDF is a reasonable first attempt.

The expected result is four A4 pages in one PDF with all photo edges visible. Read the actual result report for file size and verify the text at full viewing size.

Merge mixed portrait and landscape screenshots

Assume three PNG screenshots include two tall screens and one wide chart. Choose US Letter with Auto per page so the chart can use landscape while the other pages use portrait. Use Fit whole image to avoid losing interface labels at the edges.

Preserve a transparent logo sheet

Assume two PNG graphics use transparent backgrounds. Choose Match each image and Lossless pages. The transparent pixels remain in the embedded PNG data, but the PDF pages display white behind them.

Illustrative examples. The actual file size, crop status and visual quality depend on the selected files and settings. Use the generated preview and report for the real output.

Scope and alternatives

base97 focuses on a transparent browser workflow: select images, define their exact order, rotate individual pages, choose a predictable layout, see crop risk before conversion and inspect the generated PDF before download.

Representative established tools cover overlapping needs:

iLovePDF JPG to PDF provides image ordering plus orientation, page-size and margin controls within a broader PDF suite.
Smallpdf JPG to PDF provides a streamlined conversion workflow inside a larger cloud PDF product.
PDF24 Images to PDF exposes page-size, margin and image-quality controls and is useful when a broader set of PDF utilities is needed.

Those products may be a better fit when you need cloud imports, an account-based document workflow or additional PDF operations. The practical base97 distinction is the combination of per-image rotation, auto orientation per page, explicit Fit versus Fill behavior, pre-conversion crop warnings, an actual PDF preview and a result report that identifies cropped pages and metadata handling.

This page creates a new PDF from images. It does not add an image to an existing PDF, convert an image to XPS, edit PDF text, combine existing PDF files, password-protect the result, add signatures, create bookmarks, scan from a camera, recognize text with OCR, generate a PDF/A archival profile or guarantee acceptance by a third-party form.

Troubleshoot Image to PDF problems

One image will not open

Confirm the file is JPG, PNG, WebP or GIF, no larger than 40 MB, no wider or taller than 12,000 pixels and no larger than 60 megapixels. A changed extension does not make an unsupported file a valid image.

The pages are in the wrong order

Read the numbered cards before conversion. Drag a card or use the arrow buttons, then create a new PDF. Any order change clears the old result.

A page is sideways

Rotate only that source with the left or right button. Auto orientation chooses the paper direction from the prepared image shape, but it cannot know whether text inside the pixels is semantically upright.

Text or signatures are cut off

Switch from Fill the page to Fit whole image. You can also change the paper orientation or reduce the margin. Recreate the PDF and confirm the crop report says No pages cropped.

The PDF is too large

Choose Balanced PDF instead of High-quality PDF or Lossless pages. Large source dimensions and PNG page encoding can require substantial memory and file space. This page does not target an exact KB or MB limit.

Transparent areas changed to white

Balanced and High-quality PDF use JPEG pages, which cannot store transparency. Choose Lossless pages to retain transparent pixels, while remembering that the PDF page behind them is white.

The browser runs out of memory

Remove unneeded pages, use fewer images in one document or choose Balanced PDF. The browser must hold decoded images, prepared page data and the PDF in memory. A desktop PDF workflow is more appropriate for very large archival batches.

Image to PDF FAQ

Can I combine multiple images into one PDF?

Yes. Add up to 30 JPG, PNG, WebP or GIF images and place them in the required order. Each image becomes one page in a single PDF.

Is this an image to PDF converter free online?

The current base97 page creates and downloads the PDF without a sign-up or payment step. Processing occurs in the browser rather than through a base97 upload service.

Can I add an image to an existing PDF?

No. This tool creates a new PDF from image files. It does not open an existing PDF or insert pages into it.

Can I convert an image to PDF or XPS?

PDF is the only document output on this page. XPS is not generated.

Does the PDF contain searchable text from my scans?

No. Scanned words remain pixels inside the page image. The tool does not apply OCR or create a selectable text layer.

Are original image metadata and GPS details copied?

No. Images are decoded and prepared as fresh JPEG or PNG page data. Original EXIF, GPS and image-file metadata are not transferred into the new PDF pages.