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PDF source and page setup
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Choose the source route. Files stay in this browser session and are not uploaded by this tool.
Drop or browse the file to convert. Source-specific options appear after detection.
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Choose how each image is placed on its PDF page.
Select the Word-to-PDF path you want the plan to validate.
Choose how workbook sheets should map into PDF pages.
Choose how slides should be represented in the PDF.
Pick the print profile for the generated handoff.
Choose the paper size expected by the final PDF.
Set the PDF page orientation.
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Use 10-16 mm for most PDF documents.
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Keep Standard PDF unless a downstream archive or web-delivery requirement says otherwise.
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144 dpi balances readable dimensions and practical page fit.
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Higher quality keeps photos sharper but increases PDF size.
Choose the matte color behind transparent pixels.
Control remote images, stylesheets, and links in the generated handoff.
Decide whether review comments should be called out in the conversion plan.
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Leave blank to use the source filename or converter default.
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“Convert to PDF” can describe several different jobs. Images can be placed directly onto PDF pages, while Markdown, HTML, and plain text first need a printable layout. Office documents carry fonts, sections, formulas, print areas, notes, and other application rules that a simple browser preview cannot reproduce exactly.

The right route depends on what must survive the conversion. A stack of scans may only need consistent page size and margins. A contract may require exact pagination and tracked-change handling. A spreadsheet may depend on print areas, repeated headers, hidden rows, and formula results. A presentation may need slides, speaker notes, or handouts. PDF output is only trustworthy when the route matches that fidelity requirement.

PDF conversion source families and fidelity concerns
Source Natural browser route Main limit
Images One image per PDF page with controlled placement. Rasterization, crop choice, resolution, and transparency handling.
Markdown, HTML, or text Sanitized print layout rendered to PDF. Browser pagination and remote asset availability can change the result.
Word, Excel, or PowerPoint Local inspection and a review handoff where possible. Exact application layout needs a format-aware production renderer.

Page size, orientation, and margins set the available content frame. They do not guarantee that every source element will fit. Wide tables, unbreakable URLs, full-bleed images, and fixed-position HTML can still overflow or paginate poorly. Always inspect the produced PDF at the intended paper size rather than relying on a source preview alone.

PDF/A and compressed web PDF are separate targets, not styling choices. Archive conformance involves metadata, color, fonts, and other requirements that must be validated in the finished file. A review PDF can help plan that work, but it is not evidence of PDF/A conformance.

How to Use This Tool:

Choose the source route first, then set the page geometry and fidelity target.

  1. Select Source kind, paste text when applicable, or browse for the source file. Image stacks keep the loaded order, while a mixed drop uses the first non-image file.
  2. Choose the source-specific policy. Set image placement for pictures, external-asset handling for HTML, or the appropriate Word, sheet, and slide handling for Office files.
  3. Set Page size, Orientation, and margins. Use the preview to catch crop, overflow, and pagination problems.
  4. Choose PDF target. Standard PDF can use the available browser route; PDF/A and compressed web targets require a production renderer and final validation.
  5. Read the Conversion route plan and warnings before downloading. A Renderer required result means the current output is a review handoff, not the final high-fidelity conversion.

Interpreting Results:

The route status matters more than the score graphic. Browser PDF ready identifies an image route that can assemble a PDF locally. Review PDF ready means a useful preview or handoff can be produced even though a production renderer is still required. Renderer required means there is no trustworthy direct route for the selected source and target.

The five readiness scores are fixed planning heuristics from 0 to 100. They compare route characteristics; they do not measure the quality or standards conformance of a finished PDF. In particular, a high fidelity score for an exact Office mode signals that the requested fidelity needs a renderer, not that the browser has already preserved it.

  • Use the PDF preview to check page breaks, crop, margins, and missing assets.
  • For Office documents, compare the final production PDF with the source application at representative pages, sheets, or slides.
  • For PDF/A, validate the actual output with a conforming validator; the selected profile and a review PDF are not enough.

Technical Details:

PDF page geometry is measured in points, where 72 points equal one inch. The selected page size provides base dimensions, orientation swaps them when necessary, and margins are subtracted from both sides of each axis to obtain the content frame.

Formula Core:

Millimetres are converted to points before the available frame is calculated.

p = m×7225.4 Wframe = Wpage2p Hframe = Hpage2p Ssimplicity = max(10,100C)

Here m is the selected margin in millimetres, p is that margin in points, and C is the route's fixed complexity score. Margins accept 0 through 40 mm. A4, Letter, Legal, and Tabloid use 595.28 × 841.89, 612 × 792, 612 × 1008, and 792 × 1224 points before orientation is applied.

Rule Core:

File to PDF route rules
Source and target Build route Renderer requirement
Loaded images, standard PDF Images are embedded onto PDF pages in the browser. No production renderer required for the basic image PDF.
Markdown, HTML, or text, standard PDF Sanitized printable HTML is rendered or sent to browser print. No format-aware backend is required, but browser pagination still needs review.
Word in simple HTML mode DOCX content can form a simplified printable handoff. Exact pagination, fonts, sections, fields, and tracked changes are not preserved.
Exact or archival Word, Excel, PowerPoint, or another file type Local inspection and a review handoff may be available. A format-aware production renderer is required.
PDF/A or compressed web PDF A review PDF may be produced from the available handoff. Final conformance or compression requires production rendering and validation.

The readiness model assigns a privacy score of 96. Backend need is 88 when a renderer is required and 18 otherwise. Base browser-ready, fidelity, and complexity scores vary by route: images use 95, 90, and 25; plain text uses 86, 82, and 18; Markdown uses 82, 76, and 25; HTML uses 76, 74, and 35. Tables, images, remote assets, larger image stacks, and Office formats raise complexity or lower browser readiness. Missing source caps browser readiness at 45. PDF/A or web targets cap it at 35 and raise fidelity intent to at least 82.

Images are limited to 60 per pass. PNG and JPEG can be embedded directly; other browser-decodable formats are rasterized to PNG pixels first. A decoded image above 64,000,000 pixels is rejected. Text sources are limited to 2 MiB, and other single-file preflight routes are limited to 80 MiB.

For HTML, blocked-asset mode removes remote resource references. Relative mode retains inline and relative references but removes HTTP, HTTPS, and protocol-relative assets. HTTPS mode may load remote resources, so availability, cross-origin rules, and later changes can alter the rendered PDF.

Privacy and Accuracy Notes:

Source files are read in the browser and are not uploaded to a server-side converter. If HTML is allowed to use HTTPS assets, the browser can still contact those external hosts to load images or styles. Block remote assets when the document or network request should remain private.

  • Keep original documents until the final PDF has passed visual, text, and page-count checks.
  • Expect browser font substitution and pagination differences in text and HTML handoffs.
  • Treat every Office review PDF as provisional when exact layout, formulas, notes, fields, or archival conformance matters.

Worked Examples:

Twelve product images on A4 pages

A stack of twelve images follows the direct image-PDF route. With contain placement and a 14 mm margin, each image is scaled inside the calculated page frame without intentional cropping. The output still needs a visual check for low resolution and unwanted transparent edges.

Workbook prepared for exact print output

An XLSX file can be inspected for sheet structure, but exact print areas, repeated rows, formulas, hidden content, and page breaks need a spreadsheet renderer. The review handoff documents the chosen sheet policy; it is not the final production PDF.