Open the file locally first
Modern browsers can display a PDF without an office application. Document Forge opens an existing PDF in the browser's own viewer; the default workflow does not upload the file. That makes a local first pass useful for confidential drafts, but it does not replace your organisation's retention or security rules. A browser tab is not a document-management system, so close it and remove downloads from shared devices when the task is complete.
Check these four things
- Page breaks. Scroll through every page and look for headings stranded at the bottom, blank pages, clipped content, or tables cut between pages.
- Fonts and symbols. Check Korean, Japanese, Chinese, accented characters, equations, and symbols. A missing font can change line wrapping even when the text itself is present.
- Links and destinations. Open a few important links and confirm that the visible label, target, and page number still make sense. If the document has a table of contents or bookmarks, test one entry.
- Print output. If the recipient needs paper or a different PDF, use the viewer's print command and confirm the paper size, scale, margins, orientation, and background graphics.
Look beyond the first page
A PDF can look correct on its cover while failing at the end. Check the last page for cut-off signatures, footnotes, page numbers, and empty trailing pages. Zoom in on a table, a small caption, and a non-Latin paragraph. If the file contains a form, click or tab through the fields you expect the recipient to complete; a printed-looking page does not prove that the fields are interactive.
For a document that will be submitted online, compare the final page count and file size with the portal's limits. Open the exact file you plan to upload, not an earlier export with a similar name. A clear filename such as application-final-2026-08-12.pdf is easier to distinguish from a draft than a repeated download.pdf.
Viewer versus conversion
Opening a PDF only displays a file that already exists. Converting HWP, HWPX, HTML, or text into a PDF creates a new document and may change page layout. Use the appropriate workflow: preview a supported HWP file locally, open an existing PDF in the viewer, and inspect the saved PDF after printing. For layout-critical HWP files, compare the result with Hancom Office because fonts and complex objects can differ. If you only need to read a PDF, converting it again adds a new opportunity for layout or metadata changes without adding value.
Accessibility and sharing checks
If the PDF is going to a broad audience, check the reading order, heading structure, text selection, contrast, and whether important information is available as text rather than only as an image. A browser viewer can show a scan, but it cannot make the scan searchable or accessible by itself. Ask for an accessible source or run an accessibility review when the audience needs one.
Keep private documents under control
Do not upload contracts, identity documents, student records, or unpublished work to an unknown converter just to view them. Check the site's privacy notice, confirm whether processing is local, and remove downloaded copies from shared devices when the work is complete. If a server is necessary, record what the service says about retention and whether the file is sent to a third-party model or storage provider.
A two-minute final check
- Open the original and the final PDF side by side for the pages that matter most.
- Read the first page, one middle page, and the last page at normal zoom.
- Select text from a Korean or multilingual paragraph to confirm that it is really text.
- Open one important link and confirm the displayed page number or destination.
- Upload or share only the final named file, then keep the source until the recipient confirms receipt.